We never thought it would come to this, but you can get green with your golden. The NoPoPo battery, a rechargable battery from Aqua Power System, runs on beer, apple juice, cola, saliva and urine. Yes, urine.

The system works with a basic chemical reaction between magnesium and carbon. If you want to try one out (with soda, please use soda) you can buy it for $15.

NoPoPo stands for Non-Pollution Power, though we might suggest that many folks would consider urine "pollution," especially if you are out on a sidewalk refilling your battery. Furthermore, it is our firm hope that the liquid in the photo is Sunny Delight.