Dokkaebi
Dokkaebi (도깨비) are the goblins of Korean folklore: mischievous spirits said to form from objects stained with human blood or from old discarded household tools. They appear as horned, ugly beings who play pranks, trade using barley-straw or wooden money that turns back to leaves, and can be driven away with fire, pork, or red beans. Their magic club (dokkaebi bangmangi) is said to summon treasure.