First, let me clarify this is Dawn talking, so that no one will accuse Jayson of embedding make up videos. Then let me say that, as someone who spray painted her body Krylon white last October 31st, so that I wouldn't have to worry about makeup rubbing off my bare shoulders, the following technique doesn't bother me in the least.
It uses fabric paint on the body as a relief stencil, and I think its a BRILLIANT idea. I am already cooking up interesting wounds or swirls, or... or... or.... just let your imagination run wild.
And yes, I will still be Krylon-ing myself again this Halloween. It worked like a charm, my skin stayed perfectly clown white all night, with no irritation, and.... well, I already took the next day off work, just for scrubbing. :D