This machine will turn itself around in circles until optimal light hits it.
-A garden solar light.
Step 1: Condition the Panel.
Cut the LED bulb from the circuit of the panel, and solder two long wires to the solder points where the LED used to be.
Step 2: Attach the Motor.
Solder the two long wires to the terminals of the motor, and fasten the motor the the outside of the case, at a slight angle.