Custom M.U.S.C.L.E. Shirt
This shirt was created by Muscle Things, who was kind enough to send me one. He did an awesome job... it's definitely one of the best fan-made MUSCLE shirts around, and certainly among the coolest of my shirts. Check it out below! And if you'd like to order one for yourself, you can contact Muscle Things through his profile on the Little Rubber Guys Forums.