No, this isn't a lightsaber being dipped into a glass of water... It's the SteriPEN.

SteriPEN is more than just an awesomely compact water filtration device. This water purifier uses ultraviolet light to kill germs, bacteria, and protozoa.

All you have to do is just stir the SteriPEN in a glass of water for a minute and presto! No more creepy crawlies in your drinking water.

So, whether you're hiking in the backwoods or travelling around the world, the SteriPEN is lightweight enough (just around 3.5 ounces) to take with you and uses only 4 AA batteries.

The SteriPEN retails for $279 and is available from Magellan's.