Crystal ball
Crystal balls were magical items often used to tell the future.
A serpentine beast in a fringed cloak who told fortunes under a large tent using a crystal ball was one of the vendors at the Interdimensional Black Market by the time of Tracker-764 and Darius's adventure there in 2019. (PROSE: Misadventures in the Interdimensional Black Market)
Fae-turned-pop star Pixie Pristine once owned a crystal ball, which was stolen by Jenny Nowhere with Jenny Over-There's unwitting help in what turned out to be part of a larger plot. It was subsequently damaged, but not destroyed altogether, when Nowhere threw it to the ground in rage. Over-There ended up bringing it back with her to the Multidimensional Finders Service headquarters. (PROSE: Family Business)