This two-tier cake was made for a retirement party at the beach. Icing is all-butter buttercream. Shells are molded chocolate, dry-dusted with luster dust. Pearls are fondant with luster dust. Water on top is tinted piping gel, textured with a spatula to make ripples. Sand is graham cracker crumbs mixed with brown sugar. Colors in the picture were really off, as you can see from the inset pictures, which are more color-correct.