I have a friend who wants to make a quilt out of her granddaughter's bathing suits that she has collected from the time the girl was 7 years old. This little girl is a Make-a-wish child and swimming is what has kept her lungs functioning so this quilt will be very special to her. Some of the bathing suits have stretched out. My suggestion was to stabilize the pieces of bathing suit to pieces of muslin, but if the fabric is stretchy that work? Any suggestions would be greatly appreciated!