Skull Door Knocker
The Skull Door Knocker is a player-deployable decorative item in RUST. It is available for purchase on Steam via the in-game Rust store during the Halloween event every year (and subsequently the Steam marketplace thereafter).
The item looks and functions as a large, ornate door-knocker and is placed in the center of the door. Skull door knockers may only be hung on single-frame Wooden, Sheet Metal, or Armored doors. Once hung, they occupy a sizable circle in the center of the door that allows for a much deeper knock to be wrung and a considerable amount of fire escaping from the skull’s mouth. Players need to remove the knocker with a Hammer before the door can be removed. Knockers are entirely decorative but may be accidentally hit with raiding supplies instead of the intended door. Raider beware.