We used these picture holders at each table at our wedding. Each tree had a theme (baby pictures, high school, first date, etc). It was a fun way to tell people our story, but now we don't need 13 photo trees! Please let me know if you are interested! Here's a link to a craigslist posting, too:
http://washingtondc.craigslist.org/doc/art/2486700073.html 