I used Steve's pattern but did the tree and base out of 1/2" corian that someone gave me. I then did the ornament with 2 pieces of 1/8" and cut out the center of the top for the photo. I then only glued from the top of the ornament and down one side to the center of the bottom so the photo could be changed. Oh, I added a little slot on the back piece so you could grab the photo.