Here are some personal sketch cards I've drawn for people recently. If you'd like one, they are $40.00 apiece and I'll draw anything you want. Just send me an e-mail letting me know what you want at email@example.com
Here are some sketches drawn directly on original GPK cards with the stickers removed. It's a pretty slick surface, so it's pretty limited what pen I could use.
Some more personal sketch cards.