Sculpey Flexible Push Mold Flowers & Leaves This revolutionary, flexible mold material means no messy release agents are needed. Simply mold, flex and release! You can create detailed jewelry, ornaments, gifts and home decor items quickly and easily. What a great and easy way to personalize gifts for friends. The Sculpey Flexible Push Molds work with polymer clay, air-dry and non-dry modeling clays, plaster of paris, craft soap, and candle wax. Projects can then be painted or varnished.