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How do you make fake rocks/boulders? Answered

I'd like them to go around the pool area in constructing a water grotto so they need to be durable and water/weather resistant.

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KitemanBest Answer (author)2009-05-15

How about...

Build a chicken-wire shape that matches what you want, then cover it in a layer of concrete (you can get powdered dyes to colour the concrete if you want). You could paint the concrete with masonry paint, or I think you can buy treatments to waterproof driveways and patios which could work for this.

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jtobako (author)2009-05-17

With all the sculpting answers you get, none of them look great for long. Why not go with the real thing?

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ANDY! (author)2009-05-15

Try carving foam, covering it with plaser and paint it. There are rock textured spray paints too.

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thecookiemonster (author)2009-05-15

get some rocks or lumps of concrete and crack them up with a sledgehammer!!

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