The Octonauts Image Photo Cake Topper Sheet Birthday Party - 1/4 Sheet - 76819 The Octonauts edible cake topper sheet! Great for The Octonauts themed birthday party or event! Topper will fit a 1/4 sheet cake or can be centered on a 1/2 sheet cake. High quality frosting sheets and edible ink are gluten/dairy free. Contains no known allergens or peanut products. FDA approved and certified kosher.