"It can be tough to remember all of the win-loss combinations involved in Sheldon Cooper's version of Rock, Paper, Scissors. Luckily, this officially licensed ""Big Bang Theory"" t-shirt illustrates the rules for you: ""Scissors cuts paper, paper covers rock, rock crushes lizard, lizard poisons Spock, Spock smashes scissors, scissors decapitate lizard, lizard eats paper, paper disproves Spock, Spock vaporizes rock, and rock crushes scissors."" Oh, and just in case you were wondering, Spock ties Spock. Black 100% Cotton Officially Licensed Standard Fit More 'The Big Bang Theory' items: The Big Bang Theory Merchandise"

Officially licensed Long Live Paper & Scissors David & Goliath Gray T Shirt. This classic David & Goliath tee features a cute print that says, 'Rock is dead - long live paper and scissors.' Super soft and high quality cotton/poly blend.

Officially licensed Beer Pong Varsity Team Drinking Funny Gray Graphic T-Shirt. Features a sporty beer pong distressed design on the front. Cotton/poly blend.

Officially licensed Chuck Norris Rock Paper Scissor Lizard Spock Olive TShirt. Features a diagram of the game Rock, Paper, Scissors, Lizard, Spock with Chuck Norris defeating all five! 100% cotton.

Officially licensed 30 Rock Tracy Jordan Mind Grapes Gray T Shirt. Features actor Tracy Morgan and says, 'I've got something on my mind grapes.' 100% cotton.