Duckon 2007-Steve Ward's Singing Tesla Coil video
And inferring a datum from the page, there are high-voltage cons called Teslathons, though Google's kind of sparse on info.
Guess they don't want just anyone playin' with sparks like that, though it would sure be a Darwinian means of self-selection for reading comprehension and the ability to follow common-sense safety rules...
J.