Has anyone tried carving rock in the blue construction styrofoam? I
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Carving Rocks In Foam - the MRH Forum
Making fake rocks from foam and grout.
Great large rock molds - the MRH Forum
Take Five a Day » Blog Archive » How to Carve and Paint Foam Rocks
Carving rocks from foam - Model Railroader Magazine - Model Railroading, Model Trains, Reviews, Track Plans, and Forums
Next step - mountain building - the MRH Forum
MRH Feb 2012 - Issue 24 by Model Railroad Hobbyist magazine - Issuu
The Black Hills and Fort Pierre in On30 - the MRH Forum
Great large rock molds - the MRH Forum