How about a super-rugged, waterproof and solar powered battery booster case for your iPhone
The Aqua Tek S is a rugged, waterproof, battery-powered, solar panel-packing case which makes your iPhone invincible.
- Waterproof and dirt resistant design protects your iPhone 4/4S from outdoor elements
- Poly-Carbonate, ruggedized casing withstands drops, falls and spills
- Lio Polymer Battery and solar charger keeps iPhone powered so users can hike, ski, camp and play longer
- Secures and protects the iPhone 4/4S while leaving access to the phones camera, volume buttons, speakers and Multi-touch display
- Easily charge and sync the iPhone in the AQUA TEK S by opening the thumb screw and attaching a micro USB to the connector