I have several kimono and haori jackets. I wear mine as they are and have one child's kimono hanging on the wall. I have purchased kimono pieces and sewed with them. As someone mentioned, a lightweight fusible interfacing helps to give them a better hand and also to stop the fraying. There used to be one that would fuse at a low temp that I used when I put some kimono pieces in a garment.
They're so beautiful. I'm sure they would make a wonderful quilt or wall hanging.