Levitating light bulb.
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Previously:
https://www.homemadetools.net/forum/...117#post172330
https://www.homemadetools.net/forum/...775#post163628
https://www.homemadetools.net/forum/...584#post193345
https://www.homemadetools.net/forum/...860#post186858
https://www.homemadetools.net/forum/...631#post197581
