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Message: <blockquote data-quote="mac1504" data-source="post: 5193479" data-attributes="member: 774">I started out with 2 8'x4' insulation foam boards (2" thick) and cut them down to 4'x3' (roughly) sections and then stacked them on top of each other. I then glued them together, and penciled out an outline on the top layer. After that, I simply used a utility knife and carved out each layer until I was down to the base (which was a 1" foam board cut down to the size of the piece). For the lava at the bottom I used acrylic bathroom caulk. Laying down beads of the caulk, and then spreading it out with a wet brush (to keep it from sticking too much) in swirling patterns. The rock spires in the middle were simply just spare pieces of foam that I carved out and then stuck into the drying caulk.After that, it was a long and messy process of painting with watered down paint (a black ink to get into all of the cracks). Then, I went back and gradually drybushed the rocks with dark shades of grey and then lighter shades. For the lava I started out with a base coat of yellow, and then drybushed on orange, then red, and then a light coat of brown and red to give the look of cooling lava.</blockquote>