Thanks to the beautiful top window on this locket, you can view whatever treasure you put inside! We stamped a 5/8" circle blank and chased the edges to give it a bit more texture and interest. If you want the piece to move around, then lay it inside the locket as is. If you want the blank to stay in place, use a little piece of double sided tape on the back of the blank to keep the stamped name neatly placed. Pepper in an assortment of flatback crystals, small solderable accents or other small treasures you might find. Keep the collection relatively flat so the locket is still able to close.