Each of my switches had a different design, but were similar in a way. My first switch worked like you have a popsicle stick, and whenever you press the back down, because of rubber band holding the popsicle stick, it will go up to touch two pieces of tin foil together which will get the light bulb to turn on. My second switch, has this thing that is like a swing, and there is a piece of cardboard that holds the tinfoil, so whenever you press it down the light bulb will turn on. My last switch is really simple, just one piece of cardboard folded in two pieces, and each side has a piece of tinfoil, so it kind of works like a mouth, because it opens and closes.