Need Item Ideas.

For context there is a shop in the next campaign I’m running which is called “The Shop that Sells you Stuff you Don’t Want” which is run by “The Guy who Sells you Stuff you Don’t Want” where all the items have misleading names that make them seem like normal items but they’re actually magic items with abilities that range from useless to incredibly useful. Right now all I have is:

Grapple gun: shoots out a ghost man towards a target or the closest person if there is no target, the ghost man grapples them and then disappears once the target escapes.

Plot Armor: a chest plate made of books that gives you advantage on intelligence rolls.

Mind swap ray: swaps whether someone minds doing something or not, only works if their intelligence is lower than yours.

Brass Knuckles: When you punch someone with them it does no damage but every word they say for the duration of the encounter will sound like a trombone sound instead of actual words.

Anti Fall Damage Boots: You are immune to damage while falling, you still take landing damage.

Wizard Hat of Height: Makes you 5 feet taller (if you count the height of the hat)

Gauntlets of Cloning: When activated they make two new gauntlets, these gauntlets do not have the same ability and disappear at the most inconvenient time possible.