Movable fake walls?

For movie sets they use 1/4 luan plywood and 1x2 furring to frame a wall and then make stand by attaching a corner; either in reverse or as another wall. They keep it from falling over by weighting it on the back side with sand bags.

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Photons by the bag.
Gravitons no longer shipped outside US or Canada
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You got a camera, now go out and get a life; or at least a picture of one!