WILTON-Fondant Shaping Foam. Thick and thin squares are the ideal soft surface for shaping flowers; leaves and other fondant or gum paste cutouts. Use the thin squares 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 4x4x1/8in and thick 4x4x1in. Imported.