Not all magic items are for humans. Rewrite of my original and premiere submission, Horse Brass
Once upon a time this sword may have been a sight to behold, but no more. Rust and decay now tarnish the metal of this forgotten relic, and those who stumble upon it are more likely to toss it than use it.
Based off of the Rubik's Cube, the Emote Cube is a banned piece of arcanotechnology
Ah, you are awake now I see. Wondrous news. I realized that you have no idea what is transpiring so I will be blunt so you may understand it. It is rumored that you are one of the best jewelers and metalsmiths in the region and for that you are lucky enough to have been chosen to create an item that will change the world. And afterwards, you shall be set free. My word on it.
An unassuming sewing needle, five to six inches long. Certainly nothing out of the ordinary.
A suit of dragon scale armor created from and psychically linked to a still-living dragon.
Sometimes, you just want to accept that something tastes good without knowing how it was made.
The Sperry-Colt 7.5 cm automatic rifle, standard weapon of battlemechs for the Atlantic Federation
Magic, by its very nature, would greatly help not just the PCs, but the masses, too. Here are some magic items that the commoners's use.
A mail order tank, interstellar war, the engines of galactic commerce and nostalgia.
A sword with a mission
Chrome is the one of the most popular Superbrands in the Cosmic Era
Six gruesome blades forged from dwarven blood in the pits of ancient bol-Pakash. Six knives the dwarves wish never existed.
The ultra minimalism mech, for the common consumer
A toilet that teleports your feces onto the PottyPortal's Poop Hill.
The best way for a traveling dwarf to sleep is on a bed of stone - Bodrick Rocknumber, stone bed salesman
'Cmon and drink up. This potion will really help us understand each other, if you know what I mean.
A standard crowd control/riot shield
Perhaps the product of another universe or time, this vessel appears as an early Tall ship, but is made of iron from keel to spar. The sails are a battered canvas but are nearly indestructible, but in truth do little to move the ship - the ship is able to move even with no winds.
The ship is powered by life force, requiring regular sacrifices to ‘charge’. The victims are cast in front of the vessel as it moves, it’s razor sharp bow bisecting them. The ship may initially be missing key components and the ritual to power it would also require research by would-be users.
The ship has no built in weapons aside from the bow, which can easily cut even large wooden ships in twain.