Tremont Electric's nPower PEG, a kinetic energy harvesting battery charger, was tapped as one of Wired magazine's "100 Perfect Gifts Whether You've Been Naughty or Nice!" Actually, the nifty device nailed the #5 spot.

Comparing the device to a self-winding watch, the entry says "this 9-inch cylinder captures watts via movement. A short walk charges the battery with enough juice to power up a dead cell phone for an emergency call -- like, say, to the pizzeria. Enjoy that slice; you earned it!"

Scroll through the entire list -- both naughty and nice -- here.