I was watching Repo: The Genetic Opera! (brought to you by the same producers/director of Saw), and one of the scenes really intrigued me. The set is entirely plastic. The story behind it is that the producers told the director, Darren Bousman, that they couldn't give him any money to shoot the scene. After Darren made enough noise, they said, "Fine, you can film the scene, but we can't give you any money for a set. All we can give you are these rolls of plastic." Lo and behold, he used the plastic to create the setting, and it worked great. Until I listened to the commentary and heard Darren talk about this scene, I didn't think twice about the plastic being used for the scenery. After seeing that, I'm curious if anyone here has any tricks they picked up of ways they created dirt cheap sets that worked surprisingly well?