With my son’s 3rd grade class we made graham cracker ‘gingerbread’ houses similar to the big one in my pictures bu with only one window in front and a bigger door. We used Royal Icing to ‘glue’ the houses together so they were 100% edible. Everyone did a really great job with only one construction disaster (luckily I had brought extra pieces). There were minor wall damage too but I had showed the kids how to ‘glue’ them back together and the kids did this really well – usually on their own. I had precut all of the pieces and we put them together one day and decorated them the next. They were a big hit. I had made myself a smaller one to use as an example. I included the decorated picture of it below (minus one eaten (not by me) door).