Stumps straight outa maplestory.
If I recall correctly atleast.

Fairly sure its a hat form of the ones you fight in like the second completely different area.

Edit:
K I may or may not have the wrong game when I say maplestory. Trying to remember exactly where its from though

Edit 2: whatever game the tree stump hat is from Im fairly certain ghosts wear it.
Im 99% certain its not original

edit 3: Possibly thinking of phantump from pokemon

Not sure if this is what I am thinking of...



Pixel version