The diamond "tattoo."
Anyone with tattoos can tell you that high quality work is not cheap, but this takes it to another level. This also isn't permanent (which is a good thing, actually). For a promotion of their products, South African diamond company Shimansky adhered 612 diamonds to model Minki van der Westhuizen. The cost of the diamonds was estimated to be $924,000, and made motion difficult for Minki. The promotion was successful, though, and Shimansky plans to do more promotions like this in the future.