My son had to design a built a castle for school. He had a specific list of things it had to include. It could not be bigger than 24 x 24 inches, everything had to be labeled with a full paragraph (4-5 sentences), no spelling or grammer mistakes, shows hard work and creativity.
This is my son's castle. They had a show in the school for the students and parents. There were some very creative ones. One even had real pea gravel on it. The mother said it was a lot of washing and many jars of rubber cement that achieved the look.
My son received an "A" for this project. He deserved it. He worked hard on this.