Caschoygan

The Caschoygan does protect the head rather effectively, but unfortunately it also covers the eyes, preventing the wearer from seeing and – worse – reading anything. Most of the time, adventurers end up writing a load of piffle and yelling nonsensical expressions such as "HOYGAN" in the hope that someone will notice them. (Place this headgear over other, already-equipped headgear to change its appearance.)