My own little princess had her 4th birthday a few weekends ago. She's been wanting a castle cake for the past 6 months so that's what she got for her birthday. The bottom was a single-layer, 10" round cake in cookies and cream and the top was a double-layer, 5" round strawberry cake. Everything was buttercream icing except the castle towers, flowers and pebblestone walkway, all which were fondant.
And decorated sugar cookies were given as party favors.