I'm trying to run a mini project about wind generator for charging electronic devices(smartphones, mp3 player, powerbank, and etc). Roughly project description, i wanna have several usb ports and the supply is from wind generator. Mostly electronic devices use 5V voltage. So the questions are:

1. Type of suitable motor for wind generator(small in size because it's mini project)
2. Suitable current output
3. List of components that i need(please recommend)