Preshrink the fabric by washing it on the hot water cycle. Dry the fabric on a low setting. Iron the fabric to remove any wrinkles.
Spread the fabric out flat on a large surface. Tape the underside of the fabric to the flat surface.
Use a roller or paintbrush to paint the fabric with the base color you choose. If your fabric is already the color you want for the base, skip this step.
Determine the pattern you want for the stone. You could use a standard stacked pattern, random stacked pattern or draw a template for a round or odd-size stone. If you choose to draw a template, use a heavy cardboard and cut the template out to create a stencil.
Tape the stone pattern onto the fabric with the ¾ inch painter's tape. The thickness of the tape provides the grout lines for your stone. If you are using a stencil, do not tape the fabric; place the stencil onto the fabric where you want the stone.
Use a rag to dab the untapped area or inside your stencil. Dab enough paint onto the area to create depth, but not enough to completely cover the base color. If you are using the stencil, remove it and allow the area to dry before moving on to the next stone.
Allow the paint to dry completely. Remove the tape from the fabric.
Add a few drops of water to the stone paint. With a small paintbrush dipped in in the watered down paint, soften the lines of the stones. Allow the fabric to dry to the touch before moving.