I made these out of tin foil and old nail polish that was just lying around unused. The foil pieces are between these soft plastic scrap booking bubbles that I had. Once the plastic pieces were on either side, I used a heated safety pin to poke through both layers and added a 7mm silver ring that I had for making earrings. I put a photo on either side so you could turn it around and have a different picture. Sorry about the photo quality. Thanks for looking!
the back of the fish pendant
the back of the stegosaurus pendant
the plastic bubbles that I used