As an artist who does a fair amount of sculpting, I have a working knowledge of some great rock sculpting products out there that most people aren't aware of. Polygem products have already been mentioned, but here are some of my favorites:



Apoxie Clay and Apoxie Sculpt, both manufactured by Aves Studios. They are two-part sculpting compounds that are easy to work with, take any amount of detail that you can throw at them, and are waterproof and impervious to just about everything when cured. They are also very lightweight and work great as a "skin" over carved foam or metal sculpting mesh. A little on the pricey side, but worth every penny.



http://www.avesstudio.com/



Another very nice two-part compound that is a less expensive alternative to the above mentioned is Magic Sculpt. It has the same basic characteristics as the other two. I can't recall who makes it, but if you Google it, it is easy to find.



The terrain making supplies offered by Bragdon Enterprises are also worth checking out.



http://www.bragdonent.com/index.htm



Also, when making faux rocks, texture pads are invaluable, and easy to make. Find a couple of rocks that have some nicely textured faces, and then layer liquid latex (sold as a mold building supply) and cheesecloth on them until you've built up a layer about 1/4" thick. Peel off when dry and you have some nice flexible pads for texturing your stone. You can quickly texture large areas with them, and they add that necessary touch of realism to your creations. They can be used for the sculpting compounds as well as cementitious mixes, though the latter general require a mold release agent to keep the them from sticking to the pad.



Just a few more things to add to your arsenal. Have fun!

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