Helmet, Circlet, Crown, Cap
Circlet of Stolen Thoughts
Can hear ally's thoughts, in combat, wins defense ties.
Headband of the Ancient Dwarvish Words of Power
Add +3 to an attack roll or skill check to perform a bold deed, after seeing the result of the roll.
Wizard’s Hat of Conjuration
Once per day, you can pull a useful non-magical common item out of this hat. The item must be able to fit through the brim of the hat, so you couldn’t pull out a siege engine or a horse. You could, though, produce a sword, or length of chain, or a saw, or a delicate vase decorated with salacious paintings of frolicking kobolds. The hat can also produce small living creatures, like rabbits or cats or doves or maybe even the aforementioned frolicking kobolds.