electricity comes potential energy, and the tension between the positive and negative electrons. So if you're wearing wool socks, and you're shuffling your feet on a shag carpet. Your body had built up a store of energy that is seeking to be released. It releases itself through a conductive medium-ie. a door knob-which hurts.
If by electromagnet you mean something that attracts electricity I would get a balloon and a little metal rod, and release the energy from the balloon to the rod. If you mean a magnet powered by electricity then I don't even know where to start.
The project that struck me the most was turning the coin into a battery for the LED. A coin in so readily available, that its interesting it can be made into something as useful as a battery.
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