Large foam cubes from Universal Foam Products have been the starting point for many creative theatre productions and parade floats. Customers often share their successes with us from castles and rock faces to dinosaurs faces. For larger carvings, most people start with a 1lb EPS cube which can be carved with a simple serrated knife, or chain saw. For more versatility we recommend a hot knife that we can also supply. EPS foam sections can then be painted, glued together or sprayed to get the final effect you need. Get inspired by other satisfied customers who have turned foam blocks into incredible stage sets and displays. https://univfoam.com/props/eps-foam-blocks-to-create-giant-rock-formation