The Infinity Gauntlet
This is the holder of the most powerful gems in the universe, but there’s some discrepancy over which is the real one, or if there is only really one glove, or if they’re a matched pair.
In the original comics, the gauntlet was Thanos’ original glove, with some slots pounded in. Let’s hope there’s a cool story in the MCU. One theory includes someone named Eitiri the Dwarves King, who’s responsible for creating artifacts such as Mjolnir. It could plausibly be him who made it and the evidence is shown to us clearly in Thor: Ragnarok
Since the original Thor & Avengers: Age of Ultron, audiences have been wondering where the real Gauntlet is, as we saw it in Odin’s treasure room, but Thanos also has one. Yet, when Hela saunters through her dad’s room, she dismissed the glove as fake.
Think about what else that film showed us: a mural of Hela and Odin as bloodthirsty conquerors. Maybe during this part of Asgardian history, a Gauntlet was created, but Odin wasn’t trusted to be benevolent enough to wield the stones properly. So he was given a fake and a real one was secretly made to stop powerful bad guys.
Then somehow, Thanos got his hands on it.