Dog collar

The dog collar is a piece of dog neckwear in Fallout 4.

Gameplay
The collar can be equipped on the Sole Survivor as a right arm piece of armor. It's also one of the 14 different collars/bandanas that Dogmeat's neck slot can be outfitted with.

Locations

 * One can be found around the neck of a skeleton inside a dog house towards the end of Fens Street sewer.
 * Can be found on alpha mongrels throughout the Commonwealth.

Bugs
It may be impossible to equip the dog collar, with the game displaying the message "You cannot equip this item."