A few chunks of Styrofoam and very coarse sand paper will make these shapes. They say a picture is worth a thousand word, however, to explain how I made this diorama, it will take a thousand words. Those of you with ability can look at the picture and just make one for yourself. The following text you give you a few hints. The scene below has six independent shapes all made separately on the work bench. The talus slope base the formations rest on is thick foam shaped randomly. All this is glued to a large piece of foam that represents the flat valley floor. This is covered with my #104 Sedona Red Rocks and Powder products and glued in place.    MONUMENT VALLEY in Styrofoam I lifted this picture from one of my past flyers showing how to make shapes from Styrofoam and then coloring them with our rock powder products. The formation in the right background is very similar to those found in Monument Valley where as the other tall formations represent those of Canyon Lands in Utah.  I know that my Hot Wire Foam Factory tool was used for much of the initial shaping, but you could do this with a sharp steak knife. 60 grit sand paper was used to round the foam into the basic shapes that you see here. The deep cracks in the rock were made by sanding with the edge of the sand paper. The secret is to sand lightly as this will remove foam quickly without tearing the surface. The cracks in the foam are widened with the sand paper. It's very important to make all the shaping and cracks random (see center formations for this effect). The very last thing I did was to make random depressions in the foam with the hot scroll tool. You can use a soldering iron for this as well. These depressions are noticeable in the right formation. Once you melt the foam, the sand paper doesn't work so slick anymore so save this for last.