I wouldn't do the Underground Railroad bit for the reasons you've already heard. But I did a presentation on quilt making and quilt care for my husband's Rotary group and it was a BIG hit--they were interested in how quilts where made, the variety of ways to quilt (and I LOVE your idea of having each give it a try with hand quilting), but most especially interested in how to care for a quilt--especially antique quilts. Seems like everyone has a quilt that was grandma's or great's, etc and most are stashed in some cedar chest absorbing cedar oils or in a trash bag in the basement/attic, etc--lots were talking about retrieving and storing elsewhere.