Thursday, June 10, 2021
It enhances the effects of any single-use magic item in the form of a feather; a feather token, Phoenix Down, chimera wing, and so on. If such an item is placed in the band of the hat, then it is not consumed when used. A used feather item crumbles, disappears, fades, poofs, or otherwise expires only if removed from the hat.
The feather item, if not already large, grows to an impressive size, and everyone the wearer encounters will comment on it. Use your game's standard reaction mechanics to determine if the remarks are positive or not. If the reaction is negative, it's just jealousy, obviously.