Thank you so much for your nice answer. I washed and recycled old blankets, mattress cover sheets or even old bedspreads for the center of the quilts. I used yarn for the tied knots along front of the quilts and I used polyester thread to sew the quilts. I could not afford buying the actual matting for all of the quilts I made for family Christmas gifts. Hopefully they will last a long time. Thank you for telling me how to search for scrap quilts. Although I am in my late 50's, I am still a beginner and learning. I really do enjoy sewing and learning. Any advice is welcome from everyone.