Junk
Junk is a component. GameObjects that hold this component will be frozen at the beginning, but will be able to be knocked around by players and will respawn once the player leaves the Stage Chunk the GameObject is in.
Junk GameObjects MUST be placed inside of a Stage Chunk, otherwise they won't function.
Junk GameObjects need to be in the Junk layer and have a Collider and Rigidbody. These will be automatically added when you add the Junk component to any GameObject.