[header] How to make a dynamo easily [title] Find a small hobby motor, those ones with some sort of wheel on the shaft. [title] Mount the motor on like a board or block of wood. [title] Find another bigger wheel and mount it on a pin or something on the same block of wood. 
[title] Put a handle on the bigger wheel. [title] Then get a rubber band and put it around the two wheels and start turning the handle.