I am using a quilting square. I know you've heard of the quilting hoops but this is different and holds the fabric so much better. Quilting hoops tend to let the quilt slide and you have to keep tightening it. This is a plastic square that holds the materiel from the backside. I was putting it on the top but found that I could get closer to the edges it done backwards.
Here is a close up of the back.