I've done one like two arrows (though not as nicely done I might add). It's easy to do and is a cool way to personalize a bow, imho.
Deadbolt, I used a clear waterproof spray I bought at the hardware store. Don't remember the name, just asked the guy for the toughest waterproof stuff he had. Since it was shiny, I just gently touched it with a papertowel as it dried. Couple of coats and it was good to go. Last I saw, the new owner still had the same finish on it (with scratches/wear of course)after 2 years. I think I spent $15 on all the paint total.