This sign rolled across the stage on a pully track the line of which was run across the stage just before this scene happened.
It was constructed first by making a base platform out of scraps and then connecting a 2x4 at an angle. The base and the 2x4 were covered in sprayable styrofoam to give texxture.
The two sign pieces were made of styrofoam, beaten up with a crowbar for their edges, painted, dry brushed and spray painted to look hand-painted by an ogre as well as old and worn.