With such a huge nation of baseball fans, it's no surprise that Boston is home to a large number of local sports t-shirt suppliers. You can either spend tons of money supporting MLB licensed apparel, or you can support your local manufacturers. Take a look at their shirts. You can wear their original works. Provided are my Top 10 favorites, alphabetically. Visit their sites for much more of their designs beyond what is shown below.

Manufacturer

Shirt Sampling

Barstool Sports

Barstool Sports is a local blog covering all things sports, women, and ridiculousness within society. They speak their mind, and offend everybody. Boston Magazine described them as the bastard child of ESPN and Girls Gone Wild. And they have a selection of t-shirts, too. Imagine that.

Owner: Dave Portnoy (aka El Presidente), Swampscott, MA

Adrian Gonzalez - Mal Hombre

Dustin Pedroia - Laser Show, Relax

Boston Sports Tees

Boston Sports Tees founder, Ernie, is a local artist and a die-hard Red Sox, Celtics, Patriots, and Bruins fan. From a young age, Ernie would rush home to watch every game with his grandfather, Andy Botticelli. In 2007, cancer took Andy, but his passion lives in every BST design. A portion of every shirt purchased is donated to the Jimmy Fund in Andy's name.

Owner: Ernie Chiaradonna, Billerica, MA

Fenway Park - Fenway, 100 Years

Carlton Fisk - Pudge, Game 6

Bottom Line Apparel

Bottom Line Apparel was created as an extension of the brand's Red Sox blog called "The Bottom Line." They make t-shirts for Boston sports fans with a pop culture twist, bringing unique, limited edition designs to fans that love have cool stuff no one else has.

Owner: Rob Munstis, Hanson, MA

Jacoby Ellsbury - The Amazing Ellsbury

Adrian Gonzalez - That Ball Is Gonzo!

Chowdaheadz

Chowdaheadz is focused on creating bold and exciting apparel and merchandise for the Diehard Boston fan. One of our most well-known and popular lines is our slogan and rivalry wear, because everyone loves a good grudge match! Unlike many of their competitors, they keep things tasteful and fun for the whole family.

Owner: Ryan Gormady, Reading, MA

Bobby Valentine - Dugout Deli

Dustin Pedroia - Destroy-ah

Drunken Bleachers

Drunken Bleachers Fan T-Shirt Store creates original, fan-inspired apparel for you, the die hard sports fan. Every t-shirt they sell is hand printed in their New Hampshire studio at Bleachers Screen Printing.

Owners: Chris & Kristin Cook, Rollinsford, NH

Boston Sports Fan 4 Life

Wicked Insoxicated

Muze Clothing

Born out of a culture of appreciation and dedication to classic films, Muze celebrates the application of a classic movie line to a real world scenario. Their high-end clothing line inspired by the favorite movie quotes of professional athletes is a unique blend of film and sports, with all proceeds supporting the athlete's favorite charity.

Owner: Bill Deacon, Gardner, MA

Josh Beckett The Man Who Shot Liberty Valance

Wonderboy The Natural

Sox Stickers

Sox Stickers is for the fan, by the fan. Many ideas come from their large fanbase. All products are made by fans in the quiet corner of Connecticut, with new designs all the time!

Owner: Dave Laabs, Thompson, CT

Fenway Faithful

Red Sox Lobster

Sully's Brand

Sully's is more than a store. They blog on Boston sports topics, and are also partners in the production "The Real Housewives of South Boston" - completely Must Match TV. During the holiday season, they also have a pop-up shop at the Liberty Tree Mall in Danvers. They claim to have been the first company to put "Yankees Suck" on merchandise back in 2000, and their current shirts are pretty cool, too.

Owner: Chris Wrenn, Peabody, MA

Kevin Youkilis - Yooooooouuuuk!

Jacoby Ellsbury - Grand Theft Ellsbury

SupahFans Streetwear

SupahFans Streetwear designs smart products that speak to your New England soul. They're passionate about sports, fashion, community and entrepreneurship. They began selling at the 2004 World Series parade and sell via street sales, web, retailers and a Kenmore Square store. They're the creators of Mass Pride "Entering" shirts, and also Walkoff Wear - both lines that have been copied across many industries.

Owner: Kevin Krueger, Natick, MA

Mass Pride - Entering Fenway

Walkoff Wear - David Ortiz

The Red Seat

The Red Seat claims to design the most fun and irreverent Red Sox oriented T-shirts, while recapturing good stuff that only a few fortunate people get to be a part of eighty plus times a year (during home games). The red seat is the lone non-green seat in the Fenway Park bleachers, located at the spot of the longest homerun ever hit there - a blast by Ted Williams into Section 42, Row 37, Seat 21.

Owners: Emily Simons & Chris Schmitt, Cambridge, MA

Welcome To Fenway

Pesky Pole - Hero Zero

Townie News

Fitzy's blog is self-proclaimed as a tribute to the best source of sports news since The Daily Show and Colbert Report. In addition to inserting GFY on everything, he also boasts a television show on NESN called Pocket Money. While Fitzy really isn't in the t-shirt business, he does pimp a handful of pop culture shirts, though just one baseball-related at the time of this posting.

Owner: Paul "Fitzy" Fitzgerald, Billerica, MA

Dustin Pedroia - Pedroia Ruler