I wanted to have students create one project that everyone in class could contribute a piece to. I wanted it to be the first project of the semester so I could launch the lesson by stating how important it is for a class to be unified in nature and how no one is more important than the whole of the class. The best way to fulfill our mission was by having each student decorate and glue up one square icohedron. Once complete, we glue 12 together end to end  to create a ring (18″across) and then the second half creates the other ring, to complete the sphere. Geometry plus art equals awesome!