Hi!!  I was asked to make the cake below and was looking for a little bit of help as far as the structure goes. I'm planning on having the bottom cake on a board with a flange connecting the top. Does anyone know if this would be secure enough for the rice krispie ship? Thank you all!!! :)  

I would use a dowel rod or metal rod but the key thing is to secure the rod into the base below. That would give it the security for the ship. If its not secure below, it will tilt. I'm curious to know other suggestions though, bump?