Wet masonry mix is extremely caustic, so protect your hands with rubber gloves. Plan to use about 1 gallon of ready-mix for each 12-inch stone. For many stones, it's often cheaper to use this recipe: 3 parts masonry sand, 1 part Portland cement type 1, and approximately 1 part water. Blend dry ingredients thoroughly until mixture is one color. Make a well in the center of dry mixture. Pour water in well; mix until it is the consistency of custard. Use immediately.
What You Need:
- Plastic dishpan or storage container
- Builder's sand
- Masonry mix (see notes above)
- Objects to embed in the concrete
- Rubber gloves
1. Create the mold. Fill any 12-inch-diameter plastic container with damp builder's sand to within 2 inches of the top. Trowel to level. Arrange leaves or other natural elements on sand. Press leaves in place vein side up. Embed a mix of shells, rocks, or pottery in the sand, keeping in mind that the side placed in the sand will be visible after the stepping-stone dries.