They could power the mobile phones off it. They should recharge some Japanese... Do you know Nike fuel bands? Those risk things that calculate Nike fuel and it tells you how many calories you're burning, they must love that stuff because it's based on wrist motion. That would be connected to the mobile phone, which has a camera in it. Every time someone takes a photo off them, they would do the peace sign and that would then charge the battery in the camera. So they would then just be able to continue taking photos of each other forever. I don't know if you're fully out of battery, you might need to do some dirty things in order to get it fully charged though