The treasure island cake was very simple, a red velvet cake (again for the sharks blood theme) covered in store-bought icing coloured blue for the sea around the edge. I made an island shape of beige coloured icing with a bit of coconut around the outsides for the beach. A few rocks were made by colouring the icing black and I used dark blue for the waves. I found a small model boat, a small plastic skeleton and used some lego men and palm trees to complete it.