This AC motor is really easy to build and the supplies are readily available. All you need are some magnets, wire, and rigid foam. Just be careful when working with AC power!
This project started one night while I was lying in bed trying to visualize how an AC motor worked. I knew that it was different from a DC motor as in it did not require brushes and the speed was controlled by frequency instead of voltage. After some research I came up with this project to better my understanding of AC motors.
Read more about making your own AC Motor / Generator