You're a natural
Let the dice hit the table and the bodies hit the floor. Or, you know, you totally sang that song better than any other bard in the History of the Universe. Whatevs.
We're always excited when we see shirts we recognize on The Big Bang Theory. Obviously, it's extra-special when it's a ThinkGeek shirt, but it's almost just as good when it's a shirt from a friend of ours, like the ever-talented rstevens of Diesel Sweeties fame. Sheldon wore his "I Win" D20 design season 5, episodes 8 ("The Isolation Permutation") and 21 ("The Hawking Excitation") (thx, Sheldon Shirts). And now, through the magic of ecommerce, you can own it, too.
d20 with the 20 showing and the words "I Win." beneath on the front a red, 100% cotton shirt. Machine wash cold. Tumble dry low or lay flat to dry. Imported.