The Big Bang Theory is now collectible! The characters on The Big Bang Theory do everything that we, as hobbyists, love: discussing science, passionately debating hypothetical battles between comic book characters, and playing games. So, it’s only fitting that the cast has their own trading cards. From Penny’s Halloween party to robot-on-robot melee, you can collect your favorite moments in the show. You can’t polybag these, but you can sort them in pages and carry them around in a three-ring binder. Score!