Hi everyone. My husbands parents passed away earlier this year. I have some of their clothes and would like to make quilts (small) for my sister-in-laws. The materials vary - polyester, cotton, silk, stretchy.... Is there any way I can stabilize the material? Or if you have any suggestions on how I can incorporate these materials into one quilt. I know how to sew, but am very new with quilting. I would appreciate any and all suggestions!! Thank you