My mother sent these gearrings to my wife, but she doesn't care for them. If anybody would like them, I'd be glad to send them along, free USPS cheap ass shipping. The outer tan gears turn against the inner black gear. Quarter is for scale, and is not included (it's a Bicentennial, and I keep all of those). Earliest time stamped reply gets 'em.
UPDATE: Spoken for. If you really like them, and want to get your own, you can find them here. They're $18.