In the early 1970s, Kenner released a series of Presto-Molder playsets for children to make a variety of shapes and objects from Play-Stone molding compound.
Play-Stone was developed by Rainbow Crafts, the company behind Play-Doh. It was a unique formulation of natural clay that hardened without needing to undergo a firing process or the use of drying chemicals. Play-Stone also did not shrink or crack like conventional clay, was non-sticky, and could be painted with acrylic latex paint.
Kenner integrated Play-Stone into three different sets: the Presto-Molder Car Town Set, Animal Farm Set, and Jewelry Fun Set. Each came with a variety of plastic molds; non-toxic, high-gloss acrylic latex paint; paint brushes, and three 10-oz. cans of Play-Stone. The Car Town and Animal Farm sets also included 18-inch x 36-inch plastic mats that provided a play backdrop for completed models.
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