This 3D R2D2 is a 3-tier chocolate cake. The bottom 2 tiers are 6" rounds, each is 2-layers. The head is a 6" round topped with a 6" ball mold half. The body details were printed with food coloring onto frosting sheets and applied like decals-- worked great and saved a *lot* of time! The legs are RKT covered in fondant. I put a battery-powered red LED behind one of the edible decals to light up the red circle.