I'm in the middle of designing a bunch of new cards. This one's not quite the final image, but close enough to share.
Here's the original drawing from my sketchbook (more like a doodle, really). I simply take a photo with my webcam, import it into Illustrator, and draw on top of the original. You can see how close this is to the final product. I wonder how popular a card with undergarments will be?