We use blankets all the time at the charity I participate in. We can get them free or cheap at the resale stores. Make sure they are clean and tie them up. We do not "quilt" our quilts, we tie all of them because cost would be out of site with all the quilts we do. Have used many different innards. Polyester material, washed of course, flanned sheets, make nice batting and not too heavy. Yes, we too are into the recycyle mode there.