Lainya Vantrik's wristwatch
From Jenny Everywhere Wiki
Lainya Vantrik's wristwatch was a one-person dimensional transporter resembling a digital wristwatch. To use it, one would input the space-time coordinates and then press a butto on the side, subsequently vanishing with a flash and reappearing in one's destination.
After hiring Vantrik to guard their tachyonic sailing ship, the Faction of the Fooling Fish borrowed her wristwatch so that one of their numbers could use it to pretend to be a shifter and pose to Jenny Everywhere as another incarnation of herself, “the Fishter”. (PROSE: Multiversal Mischief)