Those of you with the appropriate geek cred know the score by now. Every year on April 1st, ThinkGeek, purveyor of nerdy novelty delights, takes part in the I fooled you, internets game. But unlike other April Fools pranksters, ThinkGeeks products have a shot at becoming more than just joke fodder; they sometimes become real. Okay, so maybe the spray-on facial hair power of Mr. Beard up there is a bit of a stretch. (But hey, once upon a time, so was the idea of spray-on tans.)