The goblin skull is an item on the Odd Old Man's list during the Rag and Bone Man quest. It is dropped by goblins and General Graardor. After the quest is completed you can no longer obtain this as a drop. The bone must be put into a pot of vinegar to create a bone in vinegar, and that must be boiled to polish it. It can then be given to the Odd Old Man.
- Only during Rag and Bone Man.