Halloween is rapidly approaching, and you're going as a mad scientist—again. You can't break from your experiments to fritter away hours crafting the ultimate geeky costume. We get it, but there are alternatives. Hang up the lab coat, put away those goggles and get creative. After all, that faculty party is the perfect way to strut your sciency stuff. Impress your thesis advisor without emptying your wallet or wasting your time. These costumes require minimal input for maximal nerdiness.

» View a slide show of nerdy Halloween disguises.