Brahmin skull (Fallout 3)

A brahmin skull is the skull of a brahmin found in Fallout 3, Fallout: New Vegas and Fallout 4.

Fallout 3

 * The brahmin skull can occasionally be found in the inventory of various merchants, e.g. Moira Brown or Knick Knack. It cannot be found in containers or found out in the open.

Fallout: New Vegas

 * 6 can be found in the Ultra-Luxe kitchen area, next to the brahmins that are getting roasted by flamers.
 * Occasionally found in merchant inventories.
 * Blake sells them.
 * One is located in Sloan in the worker barracks. It must be stolen.
 * Another is on the shelf above Festus at the Sunset Sarsaparilla headquarters.
 * There is also one next to one of the dead Brotherhood of Steel Paladins in a crater, and can be added to your inventory.
 * One is in the McBride house on a shelf right in front of you when you first walk in.
 * There is a variant the skull called Antler that Davison talks to during the quest Come Fly With Me.

Fallout 4
In Fallout 4, the brahmin skull can be used to craft mounted brahmin heads, a home decoration.