I decided a needed a BIG bag to carry quilts to our guild meetings for donation or Show and Tell. I did not think I needed a pattern and made one up myself. I quilted the pieces on the HQ to practice making feathers.
I was also going to line it but UGH--that did not work out. I think I would have needed accurate cutting instructions. But I like the way it turned out and used my some fabric I bought with no purpose in mind. They were on sale and just a neat looking design.