Now that I am not teaching, I have a preschool website and I need lots of ideas. lol It seems when I was in "teacher mode" I could think of ideas all day long. Thankfully, one of my best friends sends me pictures of her daughter's creations.
To make the gingerbread house (which really isn't made of gingerbread, lol) they used a small milk carton for the center to hold up the crackers. The exterior is made of graham crackers, icing, and candy.
Have fun and enjoy making a mess! :)