I picked up the round, flat disk shape at Hobby Lobby in their Christmas crafting section, it was $1.99 with a 40% off coupon making it $1.19. I already had the spray adhesive and the photo I wanted to use cost me .10 to print a 4 x 6 photo, so this project set me back $1.29.
Comparable ornaments from companies can cost between $10-$20 each so I think I did pretty good!
I took the ornament, laid it over the back of my photo. I traced the circle onto the back of the photo, cut it out and sprayed the adhesive onto the back of the photo. I then smoothed the photo directly onto the ornament base and viola!!!