My switch is an index card with that reads "You Complete Me <3" where the positive and ground alligator clips are attached to either side. The user completes the circuit by placing their finger with a piece of tin foil attached touching the two alligator clips, lighting up the green LED, becoming a part of their circuit themselves. In order to make the 9V battery work, I attached a 330 ohm resistor to the positive alligator clip. Since the green LED needs a 3.2V flow to power, the 330 is 80 ohms more of resistance than needed, but still provides a bright light.
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