From the folks at ThinkGeek, we have the Multi-Color LED Lightbulb. It goes in a normal light socket and has a remote control. The remote controls what color the LED lightbulb emits, which could be one of 16 different colors-including white!

This has some interesting decorative uses, which is how the folks at ThinkGeek are selling this. I see some interesting uses for this lightbulb for pranks. Might be a little expensive for that at $49.95, but it's not about what it costs. It's about the reaction and the payback-the payback you know is coming.