I always wanted one of those sweet lightning balls whenever I went to the science museum either with my folks or on a school trip. Those tour guides knew what they were doing dumping us in that huge gift shop before we could leave, but I never ended up getting a lightning ball no matter how much I begged and pleaded. I was a really deprived kid, I'll tell ya.

Well, if I still had the urge to get one and also have it be really small, I could get this Plasma Light Bulb. It's a lightning ball in light bulb form, screwing into any standard socket and giving you all the fun light shows you can handle. Sure, it won't brighten your room much, but watching it follow your fingers is totally trippy, dude. And for only $10, how can my parents say no again? — Adam Frucci

Scientifics Online, via Red Ferret