Decorate your Wicked birthday cake with this Wicked Glinda and Elphaba Edible Cake Topper Image. This image is sized to fit a 1/4 sheet cake. © Universal City Studios LLC. All Rights Reserved Edible icing art is a great way to make a cake and cupcakes look fantastic and professional. These are an easy and inexpensive way to make your cake look like a masterpiece. All icing images come with instructions. Simply remove the edible icing art from backing and place on top of freshly iced cake or cupcakes. After 15 to 25 minutes the edible icing art will blend with the frosting to give your cake a professional look. Prints are professionally printed on compressed icing sheets. Each topper is shipped in a plastic zip lock bag. No refrigeration is necessary!