Summoning spells are typically cast or are tied to the basic magic item pack of jewels, rods, and so forth. Summoning devices take the same concept and tie the spell to a weapon, shield, or piece of armor.
Magic tools for vampires
Seven pairs of helpful gloves for the well dressed adventurer to wear and use.
Have you ever thought of music as magical? With these instruments, it is.
Archbishop Midas of the Jovian Temple was a scourge to necromancers of all kinds, from the genuinely malicious to those who were merely talking to the dead with the consent of the families, sending many to burn at the stake, so after his death they took their revenge...and created the Bone Idol.
Meta rings are magic items that are based around changing character stats and abilities, rather than fluff or magic powers.
A list of enhancements(?) to the simple Invisibility potion.
A charm is another word for a rune, enchantment, or method of creating magic item. The Charm of Vanity interacts with the Appearance/Charisma score of the item weilder
"The level of magic here is nearly an 80. As a mage I can stay here for several hours without any damage as my body is used to it, but the rest of you need either expensive anti-magic amulets or lead plate armor to stay longer then a few minutes-unless you want to risk turning into something like a small purple teapot," the mage told his fellow adventurers. He was exaggerating, but not very much, as his thaumometer clicked and buzzed loudly.
Thirty types of often magical ink that may be found in books or scrolls or occasionally just scrawled on a wall, with all kinds of uses.
inspired by Cheka Man's 30 Boots submission
Every adventure starts with a good stout pair of boots. Thirty pairs of boots for your PCs to encounter and maybe wear.
Some people drink potions without checking what they are, and this can have many unwanted consequences that can range from funny to fatal.
A magical one and a half handed longsword once wielded by an innocent child forced into the horrors of combat.
UPDATE: Fixed a few flaws to balance the weapon some more and filled a plot hole.
UPDATE: Decided to change the end of the story to have a more fitting reward for a war hero. But the tale still takes a tragic turn.
A type of ring crafted during a particularly brutal time period
The most expensive export of the Rin archipelago, the bottled winds are sold anywhere a buyer can be found.
A staff that summons doves
A ring of silver enchanted such that if any in the wearer's presence intend to harm them it would grow warm. Unfortunately it's properties are wasted if in place of politics where it is consistently warm.
A monocle lens made out of enchanted glass that allows the wearer to see through the eyes of golems and statues marked by the wearer.
Stones that have been attuned to the extreme temperatures of deserts or icy wastes. Such stones are quite valuable to adventurers as they can use them in order to preserve or prepare meals, make extreme environments bearable, and use them in clever devices.