Take the Otaku Corruption Test and compare your scores to the posted list - an Anime booth, which could also sell tapes and stuff.
In a similar vein, play video karaoke - we'll run the video clip, you do the dialogue (either the original, if you've memorized it, or a variation, if you've improved it). We retain the right to record the really good ones performances and play them for others!
Comic Book 1: Enter your choices for actors/actresses to fill comic book roles: we'll announce the favorite (actor/actress most often chosen).
Comic Book 2: Write your own captions to scenes from comics whose copyright we have liberally infringed; the best captions will get a color copy of 'their page' to take home.
Play the MST3K game - prove that you can make cooler, more cutting, more stupid remarks than the people who get paid, and enjoy watching abysmal videos.