Sponge Bob 3D Cake. Used Square pan cut in half did this so that I had 6 halves stacked on top of each other. Covered and decorated in fondant. Used Bubble T straws pretty heavily and then two wooden dowls down through the middle. The mom wanted funfetti cake and I should have said no as I wondered if this cake would be able to hold the weight of the fondant and as I found out the hard way, no! He started leaning back before we left to deliver so had to do some damage control to shore him up. I always have to learn the hard way LOL. Sand was graham cracker crumbs.