7) Create starfish
The kids will love discovering starfish clinging to the edges of the cake! To make them, pinch off a small ball of white fondant, use a toothpick to add golden yellow icing color, and knead well until the color is evenly distributed. Roll out the fondant a bit thicker than usual. To make a star shape, use a star cookie cutter or hand-cut a star. Dot the surface of each starfish with a round icing tip to create indents that look sponge-y! To apply your little star "sponges" to the cake, dab a little water on the backs (or adhere with royal icing if necessary).