Have rock molds for making river rocks and fieldstone rocks. All molds were purchased from olde world stone company. also have 10 corner molds, there are enough river rock molds to make 50 sq foot at a time. There are enough field stone molds to make 80 square feet at a time. over 4000-dollar value. We are retiring so don't need them anymore. our loss is your gain. We made light weight stones for sale when we sold them for the last 8 years. You can make any color for indoor or outdoor use. light weight or normal weight, for fireplaces, crawlspaces, chimneys, islands, bathrooms, accent walls, or whatever you wish. Here are a few pictures of stone we made.