An axe of extraordinary power. There couldn't possibly be anything harmful about it- right?
A statue with the power to fix your mistakes.
With many legends and myths attributed to it, the Shield of St. John was wielded by the Prophet and bears the curse of fame for bearing holy magic. However, the only benefit the Shield could bestow upon the wielder is psychological.
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 sword with a mission
A toilet that teleports your feces onto the PottyPortal's Poop Hill.
"I once went questin' for Alexander Sehtolc's five clothes. Each item has a magic power that the wearer can use, see. And when you get all seven, each power is amplified. 'Course, I never could find Alex's boots."
-Old Gerald, man in the pub.
If it was a castle, it was the strangest one he had ever seen.
He of course saw the main tower - taller than anything he had seen outside of Stoneholt, the spire looked fragile and was topped by a glassed-in chamber.
The outer wall was so gently sloped that it would have only stopped a horde of hobbling old men, an able-bodied soldier could stride up to its crest with little effort. Within one saw a huge, nearly perfect bowl-shaped area with the base of the tower in the centre, covered in hundreds of mirrors.
This structure is a massive solar collector designed by the Wizard-King Aardwal in centuries past. He used the concentrated light in his investigations into the magic of light, and in the fashioning of flash crystals.