Sports Blanks [All] - NFL

Plastic Seat Pen Blanks!

Pen Blanks are 3/4" x 3/4"

Stopper Blanks are 1-1/2" round

All blanks will come with one COA per blank. COAs are 4" x 6" card stock with silver foil embossed COA seal.

All blanks are cut as they are ordered.

Hardin Penworks, LLC, certifies that material supplied to the artisan of the accompanying hand-crafted item was sourced from the plastic seat bottoms from the RCA Dome.

The stadium was originally named the Hoosier Dome until 1994 when RCA paid for the naming rights for 10 years, with two 5-year options. It was the home of the NFL Indianapolis Colts franchise for 24 seasons from 1984 to 2007. The dome was made up of 233 tons of Teflon-coated fiberglass held up by the air pressure inside the building. Lucas Oil Stadium replaced the RCA Dome in 2008 when the RCA Dome was demolished.

This material is guaranteed to be 100% Authentic.

Pen turned by Steve Baker

Wooden seat pen blanks!

Blanks are 3/4" x 3/4"

All blanks will come with one COA per blank. COAs are 4" x 6" card stock with silver foil embossed COA seal.

All blanks are cut as they are ordered.

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Robert F. Kennedy Memorial Stadium, commonly known as RFK Stadium, was a historic multi-purpose venue located in Washington, D.C., along the Anacostia River. Opened on October 1, 1961, as District of Columbia Stadium, it was one of the first stadiums designed to accommodate both baseball and football, with a circular "cookie-cutter" layout. Built at a cost of $24 million, it initially seated around 43,500 for football and up to 45,000 for baseball. The stadium was renamed in 1969 to honor Senator Robert F. Kennedy following his assassination, reflecting its role as a national landmark.

Over its decades of operation, RFK hosted numerous professional and college teams. The Washington Redskins (now Commanders) called it home from 1961 to 1996, winning three Super Bowls during their tenure. In baseball, the Washington Senators played there from 1962 to 1971 before relocating to Texas, and the Washington Nationals used it temporarily from 2005 to 2007. Soccer was prominent too, with D.C. United of Major League Soccer residing from 1996 to 2017, alongside earlier teams like the Washington Whips (1967–1968), Washington Diplomats (1974–1981), and Team America (1983). College football teams included the George Washington Colonials (1961–1966) and Howard Bison (various years up to 2016). Other squads, such as the Washington Federals of the USFL (1983–1984) and Washington Freedom women's soccer (2001–2003), also played there.

The stadium hosted iconic events, including five NFC Championship games, two MLB All-Star Games (1962 and 1969), 1994 World Cup matches, 1996 Olympic soccer, and concerts by artists like the Beatles and the Grateful Dead.

RFK closed in 2019 after its final event. As of 2025, demolition is underway, with plans for a new stadium for the Washington Commanders set to open in 2030 on the site.

Blanks are chunks of the green seats mixed with New York Jets colored resin.

Pen Blanks are a minimum of 3/4" x 3/4" 
Bottle Stopper and Ring blanks are 1-1/2" round
Full blocks are 6" x 5.25" and a minimum of 3/4" thick
Knife Scales are 1-3/8" x 5" x 3/8" minimum

All blanks will come with one COA per blank. COAs are 4" x 6" card stock with foil embossed COA seal. Blocks come with 10 COAs.

All blanks are cut as they are ordered.

Description to follow

Plastic Seat Pen Blanks!

Pen Blanks are 3/4" x 3/4"

Stopper Blanks are 1-1/2" round

All blanks will come with one COA per blank. COAs are 4" x 6" card stock with silver foil embossed COA seal.

All blanks are cut as they are ordered.

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Hardin Penworks, LLC, certifies that material supplied to the artisan of the accompanying hand-crafted item was sourced from the plastic seats of Soldier Field.

Soldier Field is an American football stadium located in the Near South Side of Chicago, IL. It opened in 1924 and is the home field of the NFL Chicago Bears. With a football capacity of 61,500, it is the 3rd smallest stadium in the NFL. In 2016, Soldier Field is the 2nd oldest stadium in the NFL as Los Angeles Memorial Coliseum opened a year earlier than Soldier Field.

This material is guaranteed to be 100% Authentic.

Wooden Bleacher Seat Pen Blanks!

Pen Blanks are 3/4" square sticks
Ring Blanks are 1/2" x 1 1/4" square
Stopper Blanks are 2 1/2" x 1 1/2" square
Knife Scales block are 5" x 1 1/2" x 1" blocks

All blanks will come with one COA per blank. COAs are 4" x 6" card stock with silver foil embossed COA seal.

All blanks are cut as they are ordered.

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Hardin Penworks, LLC, certifies that material supplied to the artisan of the accompanying hand-crafted item was sourced from the wooden bleacher seats of Soldier Field.

Soldier Field, located in Chicago, Illinois, is one of the most iconic stadiums in the United States. Originally opened in 1924, it was built as a memorial to U.S. soldiers who died in combat. Over the years, it has undergone multiple renovations, with the most significant occurring in 2003, modernizing the facility while preserving its historic colonnades.

The stadium serves as the home of the Chicago Bears, a team in the National Football League (NFL), and has hosted numerous major events, including FIFA World Cup matches, concerts, and college football games. With a seating capacity of approximately 61,500, it is the smallest stadium in the NFL but remains a cherished venue due to its rich history and prime location near Lake Michigan.

Aside from sports, Soldier Field has hosted significant cultural and political events, including speeches by U.S. presidents and large-scale concerts featuring artists like Beyoncé and The Rolling Stones. Despite its modern upgrades, it remains a Chicago landmark, blending past and present in a unique architectural setting.

Soldier Field continues to be a focal point for sports, entertainment, and national pride, symbolizing both Chicago’s heritage and its ongoing love for football.

This material is guaranteed to be 100% Authentic.

Blanks are chunks of the GREEN seats mixed with Michigan State University colored resin.

Pen Blanks are a minimum of 3/4" x 3/4" 
Bottle Stopper and Ring blanks are 1-1/2" round
Full blocks are 6" x 5.25" and a minimum of 3/4" thick
Knife Scales are 1-3/8" x 5" x 3/8" minimum

All blanks will come with one COA per blank. COAs are 4" x 6" card stock with foil embossed COA seal. Blocks come with 10 COAs.

All blanks are cut as they are ordered.

Spartan Stadium (formerly College Field, Macklin Field, and Macklin Stadium) opened in 1923 in East Lansing, Michigan, United States. It is primarily used for football, and is the home field of the Michigan State University Spartans. After the addition of luxury boxes and club seating in 2004–2005, the capacity of the stadium grew from 72,027 to 75,005—though it has held more than 80,000 fans—making it the Big Ten's sixth largest stadium.

msu

Watch Part Steampunk Jr Cap. 

These blanks are 12.5mm tubes used with the common Jr Gent sized kits. These sports team blanks pair excellently with team specific stadium seat material found on the St. Louis Blues stadium pages.

The list below is not a complete list, but it is a great starting point list to find your desired kit.

Blank Description & Available Sizes

Complete your vertical casting projects with the Stadium Pen Blanks 3D Printed Star 11-Color Set sized for 3/4 inch PVC pipe. Each insert features precise star geometry that creates striking embedded patterns in resin blanks when used with Embedded blanks. The set contains eleven individual 3D printed stars, one in every color of the standard lineup. Prints are made from durable, resin-compatible filament that holds shape during casting and does not react with common Alumilite or similar casting resins. All casting supplies pair naturally with these inserts for consistent results. Note: Most blanks are cut fresh to order when applicable.

No finished pens are included. Pen components sold separately from our pen kits or your preferred vendors.

Embed Story & Customer Vision

These star inserts embed cleanly inside standard PVC tubes, allowing makers to pour clear or tinted resin around the star shape for dramatic visual effects in finished pen blanks, bottle stoppers, or ring blanks. The star pattern shows clearly after turning and finishing with standard tools and polishes. Ideal for hybrid blank makers working with wood, resin, or embedded materials. Pair with our COA or wood blanks for layered projects and explore project ideas such as custom NFL or NCAA themed pens using Sports Blanks All and Sports Blanks All NFL collections. Makers also enjoy matching team colors or seasonal themes with different resin tints. After casting, polish finished pieces with Magic Juice Polishing Compound to achieve a glass-like surface that highlights the embedded star. Compatible pen component sets from Compatible Pen Component Sets complete the build, while Pen display stands & COA holders showcase the finished work. Pen blanks in wood or hybrid styles expand creative options further.

Pen Blanks are a minimum of 3/4" x 3/4" 
All blanks will come with one COA per blank. COAs are 4" x 6" card stock with foil embossed COA seal. 

All blanks are cut as they are ordered.

These wooden seats blanks are from Stokely Athletic Center in Knoxville, TN.

The Stokely Athletic Center was an on-campus arena located at the University of Tennessee. It was home to the men's and women's basketball teams from 1958 until the opening of Thompson-Boling Arena in 1987. In 2008, the Lady Vol volleyball team also left Stokely for Thompson–Boling Arena. Stokely Athletic Center is located about a block from both the new arena and Neyland Stadium. It replaced Alumni Gymnasium, a 3,200-seat arena-auditorium built in 1931.

Originally built in 1958 as the University of Tennessee Armory-Fieldhouse, it was expanded to double the seating capacity to 12k, and renamed Stokely Athletic Center after William B. Stokely’s renovation donation.

This wood is guaranteed to be 100% Authentic.

Plastic Seat Pen Blanks!

Pen Blanks are 3/4" x 3/4"

Stopper Blanks are 1 1/2" round

All blanks will come with one COA per blank. COAs are 4" x 6" card stock with silver foil embossed COA seal.

All blanks are cut as they are ordered.

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Hardin Penworks, LLC, certifies that material supplied to the artisan of the accompanying hand-crafted item was sourced from the plastic seat bottoms of Texas Stadium.

Opened in October 1971, it was known for its distinctive "hole in the roof", after plans to construct a retractable roof were abandoned. Located in Irving, TX, stadium was the home field of the NFL Dallas Cowboys for 38 seasons, until 2008 and had a seating capacity of 65,675. In 2009, the Cowboys moved to the AT&T Stadium. Texas Stadium was demolished on April 11, 2010 by a controlled implosion.

This material is guaranteed to be 100% Authentic.

Plastic Seat Pen Blanks!

Pen Blanks are 3/4" x 3/4"

Stopper Blanks are 1 1/2" round

All blanks will come with one COA per blank. COAs are 4" x 6" card stock with silver foil embossed COA seal.

All blanks are cut as they are ordered.

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These pen blanks are sourced from the red plastic seats of Three Rivers Stadium in Pittsburgh, PA. Three Rivers Stadium was a multi-purpose stadium home to the MLB's Pittsburgh Pirates and the NFL's Pittsburgh Steelers from 1970-2000. Built as a replacement for Forbes Field, ground was broken in April 1968. The stadium opened on July 16, 1970, when the Pirates played their first game there. In the 1971 World Series, Three Rivers Stadium hosted the first World Series game played at night. The final game in the stadium was won by the Steelers on December 16, 2000. After its closing, Three Rivers Stadium was demolished in 2001, and the Pittsburgh Pirates and Pittsburgh Steelers moved into PNC Park and Heinz Field, respectively.

Blanks are chunks of the BLUE seats mixed with Jacksonville Jaguars colored resin.

Pen Blanks are a minimum of 3/4" x 3/4" 
Bottle Stopper and Ring blanks are 1-1/2" round
Full blocks are 6" x 5.25" and a minimum of 3/4" thick
Knife Scales are 1-3/8" x 5" x 3/8" minimum

All blanks will come with one COA per blank. COAs are 4" x 6" card stock with foil embossed COA seal. (Full Blocks come with 10 COAs.)

All blanks are cut as they are ordered.

TIAA Bank Field is an American football stadium located in Jacksonville, Florida, that primarily serves as the home facility of the Jacksonville Jaguars of the National Football League (NFL). The stadium opened in 1995 as Jacksonville Municipal Stadium on the site of the old Gator Bowl Stadium (erected 1927), and included some portions of the older stadium. Located on the St. Johns River, it sits on 10 acres (4.0 ha) of land in downtown Jacksonville.

In addition to hosting the Jaguars, the stadium is also regularly used for college football, concerts, and other events. It is the regular site of the annual Florida–Georgia game, a college football rivalry game between the University of Florida and the University of Georgia. The stadium is also the home of the annual Gator Bowl, a post-season college bowl game. Additionally, the stadium hosted Super Bowl XXXIX in 2005 and is one of the venues used by the United States men's national soccer team.

From 1997 to 2006, the stadium was named Alltel Stadium after communications company Alltel purchased naming rights. The facility was renamed EverBank Field in 2010, following the approval of a five-year, naming rights deal with the financial services company EverBank. The agreement was extended in 2014 for an additional 10 years. The Jaguars announced in February 2018 the stadium would be renamed TIAA Bank Field for the 2018 NFL season after EverBank was acquired by New York-based TIAA.

Wooden seat pen blanks!

Blanks are 3/4" x 3/4"

All blanks will come with one COA per blank. COAs are 4" x 6" card stock with silver foil embossed COA seal.

All blanks are cut as they are ordered.

No finished pens are included with any purchase. Pen components are purchased separately from your favorite vendors.

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Tiger Stadium, previously known as Navin Field and Briggs Stadium, was a baseball park located in the Corktown neighborhood of Detroit, Michigan. It hosted the Detroit Tigers of Major League Baseball from 1912 to 1999, as well as the Detroit Lions of the National Football League from 1938 to 1974. It was declared a State of Michigan Historic Site in 1975 and has been listed on the National Register of Historic Places since 1989. The stadium was nicknamed "The Corner" for its location on Michigan Avenue and Trumbull Avenue.

The last Detroit Tigers game at the stadium was held in September 1999. In the decade after the Tigers vacated the stadium, several rejected redevelopment and preservation efforts finally gave way to demolition. The stadium's demolition was completed on September 21, 2009, though the stadium's actual playing field remains at the corner where the stadium once stood. Since the spring of 2010, a volunteer group known as the Navin Field Grounds Crew (composed of Tiger Stadium fans, preservationists, and Corktown residents) has restored and maintained the field.

A plan to redevelop the old Tiger Stadium site would retain the historic playing field for youth sports and ring the 10-acre property with new development has received final approval, and funding.

Pen turned by Steve Reinker

Wooden seat pen blanks!

Blanks are 5/8-3/4" x 5/8-3/4"

All blanks will come with one COA per blank. COAs are 4" x 6" card stock with silver foil embossed COA seal.

All blanks are cut as they are ordered.

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Tulane Stadium was an outdoor football stadium located in New Orleans, LA. It is officially the Third Tulane Stadium and replaced the "Second Tulane Stadium" where the Telephone Exchange Building is now located.

Tulane Stadium hosted Tulane University's Green Wave from 1926 to 1974, New Orleans Saints from 1967 to 1974, and the Sugar Bowl from 1935 to 1974. The stadium was closed August 3, 1975 and demolished June 15, 1980. The stadium hosted three of the first nine Super Bowls in 1970, 1972, and 1975.

Wooden seat pen blanks!

Blanks are 5/8-3/4" x 5/8-3/4"

All blanks will come with one COA per blank. COAs are 4" x 6" card stock with silver foil embossed COA seal.

All blanks are cut as they are ordered.

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Tulane Stadium was an outdoor football stadium located in New Orleans, LA. It is officially the Third Tulane Stadium and replaced the "Second Tulane Stadium" where the Telephone Exchange Building is now located.

Tulane Stadium hosted Tulane University's Green Wave from 1926 to 1974, New Orleans Saints from 1967 to 1974, and the Sugar Bowl from 1935 to 1974. The stadium was closed August 3, 1975 and demolished June 15, 1980. The stadium hosted three of the first nine Super Bowls in 1970, 1972, and 1975.

Plastic Seat Pen Blanks!

Pen Blanks are 3/4" x 3/4"

Stopper Blanks are 1 1/2" round

All blanks will come with one COA per blank. COAs are 4" x 6" card stock with silver foil embossed COA seal.

All blanks are cut as they are ordered.

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Hardin Penworks, LLC, certifies that material supplied to the artisan of the accompanying hand-crafted item was sourced from the plastic stadium seats of Veterans Stadium.

Veterans Stadium, commonly known as the Vet, was a multi-purpose stadium located at the northeast corner of Broad Street and Pattison Avenue, as part of the South Philadelphia Sports Complex.

The Vet hosted the MLB Philadelphia Phillies and the NFL Philadelphia Eagles from 1971 to 2003. The Vet also hosted the annual Army-Navy game 17 times between 1980 and 2001. It was demolished 2004 after being replaced by the Citizens Bank Park and Lincoln Financial Field.

This material is guaranteed to be 100% Authentic.

Wooden seat pen blanks!

Blanks are 3/4" x 3/4"

Stopper Blanks are 1 1/2" round

All blanks will come with one COA per blank. COAs are 4" x 6" card stock with silver foil embossed COA seal.

All blanks are cut as they are ordered.

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War Memorial Stadium (nicknamed The Rockpile) was an outdoor stadium in the northeast United States in Buffalo, New York. It hosted Minor League Baseball and professional football teams, most notably the Buffalo Bills of the American Football League (AFL), and later National Football League (NFL).

The stadium was on a rectangular block near the downtown area and its baseball diamond had an unorthodox southeast alignment (home plate to center field).[2] The main entrance was in the left field corner at Jefferson Avenue to the east and Best Street to the south (behind right field). Its other boundaries were Dodge Street to the north (behind third base) and Masten Park to the west (behind first base) with Masten Avenue farther west. The east-west alignment of the football field was also unorthodox, running along the third base line. The elevation at street level is approximately 650 feet (200 m) above sea level.

War Memorial Stadium was built as a WPA project in 1937. It was originally named Roesch Memorial Stadium, though the name was changed to Grover Cleveland Stadium later in 1937 (honoring the former President and Buffalo public official) and then to Civic Stadium in 1938. The name was changed to War Memorial Stadium in 1960.[3]

The stadium originally sat 35,000, but expansions raised the capacity to over 46,500. Despite this, by the time of the AFL-NFL merger in 1970, it was one of the league's smallest stadiums (below the league's new 50,000-seat minimum). After considering[4] and rejecting a move to Seattle, the Bills left after the 1972 season for Rich Stadium (now New Era Field) in suburban Orchard Park, which had a capacity of over 80,000 in 1973.

Yankee Stadium 1975 Plastic Seat Pen Blanks

Blanks are crafted from authentic blue plastic seats from Yankee Stadium mixed with complementary New York Yankees colored resin. Each blank includes one Hardin Collectibles Certificate of Authenticity.

Available Sizes:

• Pen Blanks: Minimum 3/4" x 3/4" square

• Bottle Stopper and Ring Blanks: 1-1/2" round

• Blocks: 6" x 5" and a minimum of 7/8" thick

• Knife Scale Pair: 2@ 5" x 1-1/2" x 3/8" minimum

All blanks include one Hardin Collectibles Certificate of Authenticity (COA) per blank—a 4" x 6" card stock with foil-embossed seal with serialized security tag, protected in a hard-shell plastic sleeve. Full Pen Blocks are provided with 10 COAs.

Most blanks are cut to order for freshness. Pen Blocks require a 2-3 week turnaround.

No finished pens are included. Pen components sold separately from our team-colored kits or your preferred vendors.

Turn Your Yankees Fandom into Custom Creations

Picture a sleek pen turned from these historic blue plastic fragments, accented by deep navy and white resin swirls that echo classic pinstripes. These blanks let you craft bottle stoppers or rings that celebrate legendary Bronx baseball moments, perfect for gifts or personal collections that stand out on any desk.

Explore more options in our Plastic sports blanks collection or pair your finished pieces with Pen display stands & COA holders and Magic Juice Polishing Compound. Compatible Pen Component Sets complete the project.

Yankee Stadium History

The Old Yankee Stadium: The House That Ruth Built

Yankee Stadium, the legendary "House That Ruth Built," stands as one of the most iconic venues in American sports history. Located in the Concourse section of the Bronx, New York City, the original stadium opened its doors on April 18, 1923, as the new home of Major League Baseball’s New York Yankees. Previously tenants of the New York Giants at the Polo Grounds, the Yankees’ owners, Jacob Ruppert and Tillinghast L’Hommedieu Huston, invested boldly in a state-of-the-art ballpark to capitalize on the surging popularity of their star slugger, Babe Ruth.

Construction began on May 5, 1922, on land purchased from the estate of William Waldorf Astor for around $675,000. Built by the White Construction Company at a cost of approximately $2.5 million (equivalent to roughly $36–39 million today), the stadium was completed in just 284 days. It featured a massive horseshoe-shaped design with triple-decked grandstands—the first true "stadium" in baseball rather than the wooden or steel-framed parks common at the time. Its innovative scale accommodated up to 58,000–60,000 fans—nearly double many contemporaries—reflecting confidence in Ruth’s drawing power.

On Opening Day, Ruth delivered a storybook moment, hitting the stadium’s first home run in a 4–1 victory over the Boston Red Sox. Sportswriter Fred Lieb of the New York Evening Telegram promptly dubbed it “The House That Ruth Built,” a nickname that endured for decades. The Yankees won the 1923 World Series in their inaugural season at the new park, launching a dynasty. Over its lifetime, the original Yankee Stadium hosted 6,581 regular-season Yankees games and 37 World Series contests, playing a central role in 26 of the franchise’s championships.

The stadium wasn’t just about baseball. It also served as home to the New York Giants NFL team from 1956 to 1973 and hosted major boxing matches, concerts, and other events. Its short right-field porch became legendary for Ruth and later power hitters like Mickey Mantle, Roger Maris, and Reggie Jackson. Monument Park, initially in center field and later relocated, honored the franchise’s greats and became a hallowed ground within the ballpark.

By the late 1960s and early 1970s, the aging facility showed its wear. A major renovation from late 1973 to April 1976 forced the Yankees to play at Shea Stadium (home of the Mets). The $160 million overhaul removed obstructing columns for better sightlines, added escalators, modernized concessions and restrooms, and updated the overall infrastructure, breathing new life into the venue for another three decades.

Despite the updates, structural concerns mounted in later years. A 1998 concrete collapse in the stands led to a game cancellation, highlighting ongoing maintenance challenges. The stadium closed after the 2008 season. Its final game on September 21, 2008, featured a memorable ceremony with legends and a 7–3 Yankees win over the Baltimore Orioles. Demolition began in 2009 and was completed in 2010. The site was transformed into Heritage Field, a public park preserving the spirit of the original location.

The old Yankee Stadium represented more than concrete and steel—it embodied the golden era of baseball, the rise of the Yankees as America’s team, and the cultural heartbeat of New York. Its legacy lives on in the new Yankee Stadium (opened 2009), which incorporated architectural tributes like the copper frieze and Monument Park. For generations of fans, “The House That Ruth Built” remains the Cathedral of Baseball, a symbol of excellence, history, and unforgettable moments.