I think they might be happier if they come out of this with a lap quilt. Keep it simple like a disappearing nine patch. For the simple fact that they make their nine patch, then cut it and magic happens. Re-arranging those pieces gets their creative thinking going. Add a couple of borders. One simple maybe thin, one thicker or more complicated if they're making good time. They can learn how to piece, to put together a "pattern" of their colors, to sandwich, to machine quilt, to trim, to bind, to miter and to label. Let them know the first day - if you work on this a little bit at home, you will leave here with a finished quilt. Give them a supply list up front, so they can bring in their new fabric the first class. They can wash and iron it before the next class and they're ready to go. Those that move faster, can add an applique or something while waiting for the others to be ready to quilt and bind.