I've had this for a really long time coming always intended to make something with them, but never did.
This is to cabochon style pieces that look like Zuni inlay work, but I have no idea where they were made! It's a thin layer of mother of pearl, and what I suspect to be either coral or spiny oyster, Turquoise and jet, overlaid on to what looks like an aluminum backing.
Entire background is mother pearl, and the dancers are a mix of the above suspected stones in those related colors.
These would make great earrings! Or possibly you have another idea of how to use them I be ceramics, its $18.00 for the pair!