One to two days in advance, make fondant seashells, beach ball, sailboat and prepare castle pieces. To make 40 seashells, blend 3 oz. each: medium peach-tinted fondant, light peach-tinted fondant and white fondant to a marbleized look. Press fondant into cornstarch-dusted molds. Unmold and let dry. Brush seashells with White Pearl Dust™.