if they have not sewn alot or are new to the machines, how about a string quilt to get started? Its very forgiving, uses scraps and they look great no matter what fabric you start with. A demo of using a rotary cutter and mat (safety etc). How to pick a good fabric (hand, weave, etc). maybe even a demo on hand techniques. May not want to use them, but there has been at least one hand quilter in each group I have joined.