I wonder if we could do a design like this but actually use stones and concrete to stick them together. Would be one of the more permanent houses we ever made for May Day. The carved clay is a good idea too though. Much easier. Each kid could build a floor.
My niece believes in fairies. Seriously. "If you put up a fairy door," she says, "a fairy will move in!" So, I am making Fairy Doors in the studio. Will post photos in process and as they are completed.