This was for a 6 year old's birthday. They had asked for a beach theme. Everything was edible except the umbrella. The sides were adorned with decorations like fish and even a 3d shark fin coming out of the top of the bottom tier. This was a chocolate fudge cake with butter vanilla buttercream and mmf. The "sand" was brown sugar secured with piping gel to the fondant. The coral, octopus and shark fin were gumpaste.