I'm gonna stop by some sign shops here in town and ask about 4x4 decals while I get vinyl sticker material to color the Nissan logo on my roof wind deflector (a la the 2000 X's). A couple of these sign places in the phone book also list vehicle graphics...

If I don't see anything, I'll check out those websites as well as some of the sites I found by doing a Yahoo! search on 4x4 decals (i.e. www.edecals.com or vinzdecals.com).