C.T. Nails III in Hollywood does airbrush designs from cheetah print, to zebra, to peace signs, basically anything you can imagine. You can even custom pick your color scheme.
They're so much fun and not too over priced.
I've been a few times and it's about $40 for a manicure pedicure with airbrushed fingers.
Here's something I put together as a background for my computer. Its fun and easy, just drag pictures onto a powerpoint slide and arrange them how you like, then you can add text boxes for quotes if you like :)
It ends up looking really cool, especially if you go into your preferences and make a tiled background, then it repeats itself.