Has anyone made one?
AI made one last week to serve 150 people. I found a wonderful tutorial and my husband just proportionately upped the dimensions based on how much cake I would need. [URL]http://saraelizabethcakesandsweets.blogspot.com/2013/11/3d-firetruck-cake.html?m=1[/URL]
There was a very involved thread on this a while ago. Some fantastic advice given in it as well.