OK, I wasn't sure you grokked my meaning. So you sell prints of your original art at Zazzle for two bucks a card, that would make for twenty bucks a set of ten. So we're in the same ballpark, only mine are hand-delivered on the spot, that should make them even more valuable, in theory.
Now if a person wanted hand-drawn art on a card, that would be a different proposition entirely!
Incidentally, I used Zazzle for gear at my Boomer nostalgia blog I had going, but when they got all worked up over art that featured people who are still alive (e.g.a Neil Young compilation I did), we parted on bad terms. They are the only printing site I've found on the web who are too paranoid to allow you to sell art of living entities.
Thanks for your input.