Following Magnum's lead, here are the custom paints I've done for my cars so far.
First off, the Mazda MX-5 Cup, featuring "Captain Slow", TopGear's James May. (Captain Slow perfectly describes my own driving too BTW)

Next is the Ford Mustang in San Francisco 49ers livery. Favorite sports team + favorite player, Joe Montana.

VW Jetta with a pinup and various sponsors. When I first started skinning, I had a pinup theme going for a bit.

Pontiac Solstice with a Red Bull theme. Not so great as the numbers interfere with the logos.

Lastly one that the Aussies on the forum will either appreciate or hate.

Skippy with a basic Collingwood Magpies badging. My 2nd fave AFL team (after the Eagles), but favorite in terms of logo. Didn't really like painting the Skippy, so that's all I bothered to do with it.

All of these are available through TradingPaints.com. Anybody is welcome to use them if they want to. The only one with a personal name on it is the Jetta.