How do you create fake rocks and bolders for a stage play?

Question by marcia478: How do you create fake rocks and bolders for a stage play?
The backdrop of our church Easter play is Mt. Calvary – we need to find an easy and quick way to make light weight rocks. We need rocks piled at the base of the cross.

Best answer:

Answer by loveseasytears
How about chicken wire, paper maiche and “natural” paint colors?

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