So I have a baby shower cake to do then end of the month. The theme is "she is ready to pop" so they have ordered a pop corn box with a baby bottom on top. My question is how do I stack the popcorn box? I have never made a solid cake that would be that tall. So I dont know if i need a cake board after every two layers or how to keep it structurally sound especially since it has to be carved up on a slant on all four sides. Any advice would be greatly appreciated! TIA