This was for 4 yr. old twin girls. 10' square on bottom, 8' round (cut to be a square) and 5' round on top. I used ice cream cones "cupcakes" for the towers. The tops of the cones are also ice cream cones covered with BC and then rolled in sprinkles. This was my first attempt at a castle cake. A LOT of work, but a lot of fun to do Still quite a few mistakes, but I'm still proud of it!