This is my son's 4th birthday cake. 10â wasc with strawberry filling and chocolate buttercream frosting, 8â dark chocolate with strawberry filling and chocolate buttercream frosting, 6â carrot cake with cream cheese frosting. Fondant cactusâs, candy rocks and die cast cars for decorations. This was my first time using fondant, my son helped me make some of the cactusâs. I think this has been one of my most stressful cakes yet. I am glad it is done and am so happy with the end result and my son loved it. Thanks for looking.