Looked very promising. I designed a circuit to make a hand crank torch. So here it goes.
Step 1: Schematic
Step 2: The Housing
Step 3: Finally
For the crank! I planned to make a handle but a flat piece of wood looked more promising. I will be drilling a hole (the size of a thumb so it can be cranked easily. The handle is attached to the axle with a little mseal putty and air dried.
So now If you crank it clock wise one LED glows and going other ways the other LED glows. I am planning to add the capacitor and the switch the next time I make a trip to the electronic store.
Also I am planning to paint it in funky colors so that my kid can play with it!