How To Make Stepping Stones As Easy As 1-2-3. No Back Breaking Mixing Concrete! Rocka Design™ is the only Stepping Stone Maker that is an 8 ft. flexible reusable form that let’s you create your own custom designed stones for Garden Paths, Walkways, Patios and more. Shape the form into your desired design, add in dry fast setting concrete, add water & color, if desired, and you’re done. Time for the next stone!