I received an email this morning about a photo contest that I thought all of you out there would be interested in. It's called "Point, Click, and Win $1,000!" I don't think you have to be a previous customer to enter, either. Medical Arts Press will use the winning photo for a postcard. The link to read about and enter the contest is here: http://www.medicalartspress.com/contest.
If you win, you do have to let them use your photo for the postcard, and I'm not sure if it's like selling the rights or not (but I think it is). If anyone wants to read the full terms and conditions of the contest, the link is here.