The side of the cake is divided into three sections and the animals are placed into position. The top side of each tier must stand out from the cake about one inch. This will make room for the animals to stand behind the simulated, straw bars. You may build this out with icing or by using a narrow strip of Styrofoam. This may be attached to the side of the cake with toothpicks, and then iced to look like part of the cake.