New uses for old circuits

This last weekend I had a revelation......(scary)It occured to me,while I was building a Pummer circuit,that the circuit could also be used for other non-LED projects.Like movement(probably done before)and in a Solaroller(maybe not done before).
So I started making three Solarollers with Pummer circuits,each with a different capacitor and one or two of them will be using Wilf Rigters improved Pummer circuit.
Now all we need is some sun.........