Take a piece of the thick wire you used to make the spirals, and form a small loop. This will be a pivot point for the switch. Form the rest of it in the shape shown in the photo's. There are two stop points for the switch made from panel pins (thin nails). One of the stops is a nail nailed onto the side of the wood and bent upwards. The other is just nailed straight up around an inch away. Push a pin into the pivot point
With the stop points complete, you can attached the other end of the wire that you connected in step 4. Then, push a drawing pin through the pivot point to allow it to pivot. To compete the switch, an elastic band is tied from the switch to the first nails that you nailed into the board. This returns the switch to the off position when not in use.