This is MIT student Tyler Christensen's Tesla coil hat, which โ€” in the name of sheer comedy โ€” he programmed to play the theme from Mortal Kombat (recently) and Harry Potter. Sadly, strapping a Tesla coil to one's head isn't always the best idea โ€” the hat blew up before he could show it off on Halloween.


[TC-Engineering via Boing Boing]