This fall (early October), I saw this Joker at the Little Bighorn
National Monument in South Dakota:

http://rob.quimp.com/gallery/bighorn/IMGP1189

I might have asked before, but I was wondering if the driver is a list
member.  I hung around for a while hoping to talk to them, but had to
get rolling.

Also, I saw a burgandy Westy with Washington plates at the same area,
and again in Wyoming near Devil's Tower.  If you're reading, I'd like
to hear how your trip was, I was on the road from Washington myself.