Hi,
A crazy quilt would be cool to make with the hankies. Also do you have any clothes from them that you could cut up to make a quilt. I still have my grandma's night gown hanging in my closet. She was the coolest grandma and made lots of crafts. I sure miss her. I would go and stay with her on a Friday night and come home late on Sunday. We would make crafts together.
Also would be cool to transfer photos of them to fabric for a memory quilt.
Karen