We recently created a wrap for this PowerGenix Prius.  Check out the photos--and no, your eyes do not deceive you, it runs on D Batteries.  A whole lot of them.  NiZn is such a superior technology to NiMH that these Ds give it considerably more range than a standard Prius.

After we wrapped it we had to, in a couple of days, design something to build around the battery pack in the back for car shows.  Without exact dimensions we put together this display that could be scaled to fit the trunk, and the outcome is pretty nice IMHO.