R.A. Fountain has hosted two mail art shows:
Crossroads: World, 2006
Bluegrass: Roots, 2014
I’ve been mailing art for a long time & am a member of the International Union of Mail Artists, which you can join, easy & free, & you’ll soon start getting interesting mail from all over the world.
My entry to a show organized by Alabama Art Kitchen:
View the complete show.