I bought what I thought was enough material for the backing of a quilt I am making. It is a quilters flannel from Joann's. I called around but the store does not have any more of this fabric and they do not even have any left at the warehouse so I cannot even order it. Any suggestions? I do not want to buy all new material for the backing because it is queen size and it would be to expensive. I am about 1 1/2 yards short. Would it look bad to use 2 different fabrics for the back?