I have heard about this weird way of advertising but quickly forget it. Does anyone can add something to this way of advertising. Looks like "out of this world" kinda adverting but who cares if it works.
I have heard of it, but unless it is on a celebrity or on an athlete like a boxer I don't see how I could make any money from it. Maybe you could work with some popular kids that do those parties if you had a youth oriented campaign. They could use temporary tats and then maybe you could get a little bit of bounce, but I would say it would not be much. That's my 2 cents.
Some people were/are offering to tatoo their body with your on ebay, some were/are even offering to name their kids after your brand, etc. 110% Guerrilla Marketing! GoldenPalace.com is the best company I've seen taking full advantage of these strategies, they even got a monkey species named after their site. Of course they have several million dollars invested into this. For the rest of us it is a great Media magnet and link baiting strategy.
You should consider using car stickers too. It's probably one of the most effective advertising strategy if you're a car owner. edit: I think it also depend on what car you drive and how attractive your sticker's design is. Please note, I said probably, that doesn't mean it is the best.