Waterlily: a micro turbine that allows you to charge your phone with water and wind. Simply place it in any moving water, and the rest is easy.
Estream: a portable water generator that converts moving water into stored energy for your USB gadgets. It has a modular design. Takes 4.5 hours to charge a 6400 mAh battery by running water.
myFC PowerTrekk Fuel Cell Charger: runs on water and generates power for your mobile phones, cameras, and other smart devices.
Have you found cooler water chargers for iPhone? Please share them here.