Here are some to look at. Personally I like the idea of laying them out flat ontop of lighly colored cotton squares and appliqueing them down then doing decorative embroidery stitches accross them to keep them in place. Like rosettes and daisy or anything that would go with the design of the hanky. Good luck.
http://quilting-with-terry.blogspot....ief-quilt.html
http://home-and-garden.webshots.com/...46801698lkYLlD
http://www.gardenstew.com/about13448.html