So for a little home-improvement hacking this time, I installed a sweet knife switch to turn on/off the ikea lights i put up in my kitchen.Link
You can use a switch that has bare contacts like a knife switch as long as the power that is running through the circuit is SAFE - 12 volts or so - and even then, don't short the contacts with a fork or what have you, because it will still make a big spark and scare the children.
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