Messenger hat

survival:clothes-head-messengers-hat · from game

The message eventually reached every village, every town. At least the ones that were left.

Found in structures

Not found inside any decoded structure schematic. This is expected — worn/stored clothing lives inside a schematic's block-entity inventory data (e.g. a wardrobe or chest), which this wiki doesn't decode (see Info). Only placed blocks like paintings and tapestries can be found this way.