Usagi Yojimbo DojoBoard

I very rarely ever mail letters, but I think that it would be fun to use these:

http://www.cartoonbrew.com/cartoon-cult ... tamps.html

When do we get Usagi, Groo, and TMNT stamps? (Stamps for any other comic book series that Stan has somehow been involved with would be cool too.)

Unlike most Simpsons merch, these were actually drawn by Matt Groening himself!