Fondant Shaping Foam Set Thick and thin squares are the ideal soft surface for shaping flowers, leaves and other fondant or gum paste cutouts. Use the thin square for thinning petal edges with a ball tool, carving vein lines on leaves and making ruffled fondant strips. Use the thick square for cupping flower centers. Thin 4 x 4 x 1/8 inches Thick 4 x 4 x 1 inches. Photograph "Copyright 2004 Wilton Industries, Inc.".