A friend/co-worker has lost a tremendous amount or weight and has asked if I would make a quilt out of his large - no longer wearable - silk shirts. They're all Hawaiian prints and very beautiful. I've never made a quilt out of silk and am wondering if I can mix silk with cotton. Also ... what type of batting would be suitable? I'm excited about the quilt as the prints are beautiful! I cherish all of the expert advise I gather from all of you and hope you can advise me in this venture. Thanks so much!!