Ideas for set pieces for drama workshops:

I built a tent out of pvc pipe (actually patio furniture framing pipe so you have more connector pieces to choose from is better if you have access to Palm Casual or a similar custom patio store in your area) and covered it with big pieces of fabric. It was a tent for Abraham, etc. as well as a tent to gather in/around to hear a story. We used our imaginations and it was the stable at Christmas and any other building we needed.

We also have a puppet stage made out of pvc that was U-shaped and covered with black fabric. For prison and the tomb, we turned it around and the area where the puppeteers would stand became inside the prison/tomb/etc.

Tables draped with cloth (or better yet, the plastic tablecloths that we will all be investing in now) -- either upright or turned on their sides -- also can be parts of scenery. Long tables with folding legs can also be set on their side or stood on end (and fastened together for safety) to make walls.

Things I make out of appliance boxes, I tape together and reinforce with packing tape and then remind the student of the fragile nature of their surroundings. They hold up pretty well for five weeks or so.