Here's another one I did for a friend of mine, as partial trade for a mountain bike.   Here's his car:
 
And here's his shirt:
 
It's three stencils, one for the car, one for the highlights, and one for the ground plain, and I pulled out all the stops on the technique...multiple strengths of bleach, a hand gradient, a hand-traced stencil.  I'm pretty proud of it, and he loves it...I'm making him a hoodie and a shirt for his girlfriend with the same stencil!