Dentures, magic dentures.
Six powerful substances as described by Hachnar the Alchemist
Based off of the Rubik's Cube, the Emote Cube is a banned piece of arcanotechnology
Sometimes, you just want to accept that something tastes good without knowing how it was made.
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 toilet that teleports your feces onto the PottyPortal's Poop Hill.
A set of 30 Dwarven Treasures, for finding, or stealing.
By the Cosmic era, almost every part of the human body is replaceable, including of all organs, the brain.
While technically alive, magnagogs have little in the way of personality and are driven via telepathic command.
The teeth and fingerbones of holy men and more
The relic of an old Sorcerer, the Glyph of Tarnos Krae is a window into the past.
"Please, there must be something you can do. Oh if he'd just managed to keep his eyes open, two more minutes would have been enough."
"The gods must have truly wanted the king to drown, to make him meet such an end in a mud puddle, most unfortunate indeed. Then again we all knew he was unsteady on his feet, a pity that cane his son gave him for his 85th birthday didn't serve him better..."
A magically cursed walking stick, often gifted to those who have been on the throne a little too long. Suitable for use in any magical fantasy setting and easily adapted to higher tech magical settings.
It is rare that humans earn a gift from the Merpeople, as most of the time the two races tend to avoid each other, and with scarce resources the Merpeople tend not to give gifts very often, yet it does happen...
Bucky Batteries: when you need batteries to last a long long long time
A 100 piece of sci-fi minutia
Discover the real and mythical origins behind items of mundanity!
A invaluable tool for those with a thirst for knowledge.
An animated marionette that acts as advisor or assistant to a worthy hero.
Coins for those with friends who live far away.
A cornerstone of modern biotechnology, and something that remains in the upper echelons of secrecy.
The lengthy process to do something necessary or a magical scroll needed is inscribed on the other side of a great tapestry and can't be removed. For more fun it could be in the kings throne room. Try to hide in shadows with a 20*5 (yards/meters) monstrosity!