Ring of Return (3.5e Equipment)
From D&D Wiki
Ring of Return: This ring is permanently tied to the location in which it was forged. The appearance of the ring will often reflect the location to which it is bound in some way.
The wearer may activate the ring once per day, as a standard action. If the wearer has never been to the location where the ring was forged, activating the ring will create an illusion in the style of Mirage Arcana causing the surrounding area to appear as though it were the location of the forging, lasting for one minute. If the wearer has been to the location of the rings forging previously, activating the ring will transport the wearer back to that location, even if the location is in a different plane. If it is not possible to return to the exact location where the ring was forged, the wearer will be transported to the nearest viable location. The wearer can bring along objects as long as their weight doesn't exceed the wearer's maximum load. The wearer may also bring up to five additional willing Medium size creatures. All creatures to be transported must be in contact with one another, and at least one of those creatures must be in contact with the wearer.
Note: Anything which would prevent a teleportation or plane shifting effect will prevent the wearer from activating the ring's transportation effect.
Strong Conjuration;CL 13th; Forge Ring, Greater Teleport, Greater Plane Shift, Mirage Arcana; Cost 10,500 gp, 840 XP, 21 days; Weight: — lb.; Market Price: 21,000 gp