Illustrated ATCs. This swap is hosted by Sal Scheibe, aka Amerasu, who wrote an article on this technique for the Winter 2010 issue of Art Trader Magazine. (Don't know about Art Trader? Check it out! It's a FREE digital 'zine about mail art!)
Pitt artist pens, some in black and some in sepia, and a bit of Souffle pen.
Then I had to do another set of five! (Did I mention this was addictive?) It was fun not knowing where the sketch would go. Some I really liked, and some were bleh. I do have a tendency to draw everyone with the same expression! Here are the 4 cards I'm sending in for the swap:
You can see all the cards I did here.