I am at a small church where our church school attendance for grades 2-5 is usually no more than 10. We don't "rotate" between rooms, rather, we have a different workshop each Sunday in the room.
When we began the Workshop Model of church school about 7 years ago, I was a stick-in-the-mud about giving a new name to the class. I wanted it to be imaginative but proper. The kids and one of the shepherds were much more free-wheeling, and the nickname they gave their new class is what stuck. We are the Coolios (because we are the *cool* Sunday school).
I could not be happier that that is how the kids have felt about their church school class.