Pool Party Cake......This was such a fun cake to make. 91/2 x 11 cake pan was chocolate. 2 round 8 inch pans for the pool were rainbow chip. Graham cracker crushed for sand. I actually bought Polly Pocket items to put on top, then I gave my daughter the toys afterwards to play with. The blue topping in the pool is blue gel. Used vanilla icing (because at the time, the buttercream icing was gone). Despite the rain, the kids still had a great time.