If you’re a Greenpeace activist and want to help do your part to keep the world green, there is this Water Powered Multifunction Alarm Clock that is pretty self explanatory. Instead of using batteries, this nifty timepiece uses a water battery instead to function, featuring a countdown timer and thermometer features to boot. Different functions of the clock can be accessed by simlpy rotating the clock by 90 degrees. The Water Powered Multifunction Alarm Clock retails for a few cents short of $32.