I think that you can use all of the fabric. A strip quilt using a muslin backing for your blocks could work very nice. It really doesn't matter if all the fabrics are the same kind. Just use the muslin to stabilize and quilt randomly. When I made one and took it to my older aunts they told so many stories that the fabric reminded them of, it was delightful. Try not to stress about it just remember good memories of you Mother and share your experiences.
