Stargate Sterling Spinner Ring
No, it's not a Stargate Spinner Ring because it was designed for spinners. Though if you meet an especially charming one, you can certainly give it to her, you ol' Daniel Jackson, you. It's a Stargate Spinner Ring because it pairs 2 sterling silver bands that spin around one another and orient the Stargate for travel to your favorite corner of the cosmos. Or to send a giant bomb Ra's way.
The Stargate Ring has been hand-cast in solid sterling silver, courtesy of NYC's RockLove. Its outer ring has the 9 chevrons and its inner ring the glyphs, both of which are visible from either side. Some commenters have pointed out that the glyphs ThinkGeek chose for the ring are not authentic to the SG-1-verse, and feel that lessens its appeal, especially at $125. If you're cool with the discrepancy, and wear a ring size of 8, 9, 10, 11, 12, or 13, check out the Spinner, and prepare your finger for a trip to Abydos.