I'd make as many as I needed for whatever I wanted. Maybe you could do each one a little differently, like making the tree skirt one round. Perhaps it wouldn't be so difficult to cut into if it looked (to your mind) more like a tree skirt. Or change one of the colors - red and green or red and gold would make a nice tree skirt. There's no reason to stop at one if you like the pattern. It's a lovely pattern, btw.