This is my first wedding cake. Sea shells are made of marbled white/dark chocolate using a variety of candy molds. Coral is also chocolate. To make the coral, I placed waxed paper over a template and piped the melted chocolate over the template. 14/10/6 inch rounds. Buttercream frosting. Groom preferred vanilla and bride preferred chocolate (of course), so each tier is half chocolate cake and half vanilla cake with a sinful chocolate fudge filling.