There's already a thriving market of attractive artist-conceived stickers to slap on your iPod. Gelaskins is probably the premiere repository, offering you the ability to turn your iPod or iPhone into anything from a beautiful woodcut of an Audrey Kawasaki nymphet to a DAP made entirely of exposed nerve endings.
Where Gelaskins lacks options, though, is offering stickers for your tinier iPods: though the Nano is offered, both generations of Shuffle are nowhere to be found. Shflsm deftly tries to step into the gap consumerist space by offering an array of decorative choices for your first or second generation iPod Shuffle. Some are absolutely terrible, such as Gus the gay leather fetish gorilla, but the goldfish above is just wonderfully elegant and subtle.