For this assignment (to make a switch that works without using hands) I quickly came upon the idea of using breath, specifically blowing on a piece of tinfoil. Luckily, I found that if a bent a piece of tinfoil at about a right angle and blew on it it would change the angle and then return back to the bent position. After some initial testing that holding the two wire ends and blowing the tinfoil into them would complete the circuit, I built a small frame to hold it all together. I took a piece of cardboard and affixed a section of tinfoil to it, and then bent the tinfoil at a smaller angle so that it was about an inch above the cardboard. I then poked two holes through the cardboard, and pushed the wire ends through these holes so that their ends extended about a half inch past the cardboard.
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