Tattoos! I was thinking about getting a cheapy airbrush for doing temporary tattoos at parties etc. and while I was doing some research I came across some really fantastic images of tattoos/temp. tattoo decals. I kept thinking, wow, that would look SO cool on a cake! (Especially those skateboard cakes!) Just thought I'd share my epiphany. LOL
Just do a google and let your mind wander!

Great idea! I love those "retro" looking tatoos...like the pin-up girls (fully clothed, of course ) and things like that. Thanks for the tip!