For about a year, acclaimed director/ Michel Gondry (Eternal Sunshine of the Spotless Mind, Science of Sleep) had a peculiar offer on his website: for $99.95, one could get a personalized watercolor portrait by the director with the purchase of his music video collection DVD. You could've sent the director just about anything (movie blog FilmDrunk sent in a photo of a transvestite), and you'd get it back in impressionistic strokes. Granted, it may have taken a half year to actually come in the mail, but he's a busy guy, and it was well worth it (mine is above).
Unfortunately, the offer is currently out of stock, but it's been resurrected from hiatus in the past. In the meantime, you can check Gondry's "portraits of the week" in his Flickr photo stream.