I am trying to work out the logistics of creating a building from cake. Should I use boards between each layer of cake and then put dowels through it, or should I simply ice and stack each layer without cardboards and then put dowel rods through the entire thing. I have to transport this cake to my sisters house which is about 2 miles away, so I am worried about the cakes shifting.
It depends how high you are talking. If it will be more than a 2-layer, 4" high cake, I would dowel, then stack the next section with a cardboard bottom. I would do this for every 4" of cake, and then a rod or 2 through the whole thing.
If it's going to be pretty tall I'd worry about it tipping...if there's time get the SPS system...if not, drive VERY carefully!