UV Monkey

This product has kind of a strange name -- it's not as though it looks like a monkey! -- but the Think Geek website explains that it's like the monkeys we sent up in space to make sure it was safe for humans. This UV Monkey, then, it designed to show UV levels so you know how much sunscreen protection you might need. (It also mentions that it will help you know best when to charge your solar-powered devices. I always assumed solar-powered devices charged on visible light, not UV, but I guess I should take the geeks' word for it!)

How does it work? The center circle changes color to indicate four different levels of UV intensity. The UV Monkey measures 1.5 inches in diameter and attaches easily to a keyring, making it the perfect size for a stocking stuffer. But since we're in the middle of a hot summer (I can't tell you how many 100+ degree days we've had in Houston so far this year), you may not want to wait until Christmas!

What: UV Monkey
Where: Think Geek website
How much (as of today's post): $9.99 (plus shipping)