Primitive charger / smart phone charger

In primitive age, human beings made fire from frictional heat, using hand drilling with twigs. But now, same action will make electricity instead of fire! When you're out of battery and need an emergency call, you can use ‘Primitive Charger’. If you spin the touch pen on the surface of the case, the neodymium magnetics on touch pen’s flower leaves will make electromagnetic field change around coils. While the touch pen is spinning, the built-in coils will generate electric current and charge the battery.