Jim: It probably is a made up picture. If you go to the site you reference and click on "make a new one" in the lower left hand corner, it comes up with the same picture but a blank board. It also has instructions on how to type in your own message.
OT...Jimlur, thanks for the link. My wife went to the doctor today to check on a problem with her thumb. I just sent her a "Get Well" card using that picture. Hope she sees the humor in it!