Step 4: Determine the Basic Shape of Your Cake
Sketch out a basic shape for the ship. Ours had two upper levels on the back that were offset by about an inch off the back of the cake. We also had a smaller level in the front of the ship.
Once you have the basic shape of the base layer, carefully carve the stacked cakes into that shape. Hold off on the upper levels(that's in the next step.)