The Big Bone is a limited-time decoration that was released on October 17, 2018, as part of the Treehouse of Horror XXIX Event. It was the first prize to be won at the Old Ruins in Act 2. Additional ones can be crafted at the Holy Forge. During the event, it added a 0.60% Curse Bonus in the bonus area of the Old Ruins.
- It can be placed on grass, pavement, dirt, boardwalk, pier, edge of boardwalk, or edge of pier.