When someone says "The idea is extremely simple, a tiny tesla coil inside a fake hammer" we look up "simple in the dictionary just to check. This is Hack a day though, where simple can mean almost anything -- in this case a genuine electrified Mjölnir replica. All you need to make your own is the aforementioned tesla coil (you have one right?), some foam, a battery pack and, well... the ability to follow instructions. Fittingly, the first attempt at Thor's hammer went on a saga of its own, suffering damage at the hands of the delivery service en route to a studio. No bother for our resident hacksters though, who patched it back up in no time to the fully functioning -- if a little over-sized -- model you'll see in the video past the break.