There are some wonderful quilt shops in NW Ohio run by Mennonites and Amish. They would be terribly upset if that was going on in their stores, so you definitely need to let them know!
If you are near Marion, Ohio - there is a wonderful (but pricey) shop that gives great lessons called "the Good Housewives" , they specialize in civil war reproduction fabrics and patterns.
And in Upper Sandusky, Ohio - Sew Nice - not a huge selection of fabrics but great classes!
These 2 are not mennonite or amish, but the owners often give and/or supervise the lessons and they are awesome!