The newest iteration of these successful items will be made to be sold on consignment. They feature a 12 mm lobster clasp in a matching antique gold finish, and come with one free CR1025 battery for powering the light inside.
EDIT: After some test-marketing, I have revised the price point of these items to $18 USD each, with additional tax and shipping.
Be sure to specify the color(s) desired when ordering. Two different styles of locket ball exist; each are in limited quantities but can be ordered while supplies last.