more here: http://www.dol.wa.gov/vehicleregistration/specialdesign.html
CA has them as well...
http://www.bing.com/images/search?q=california+veterans+plates&qs=n&form=QBIR&pq=california+veterans+plate&sc=8-11&sp=-1&sk=
I’ve also seen a few from other states in my travels...