Originally Posted by
Faintly Artistic
You could put your background fabric on the Dresdens with right sides facing, then machine sew around your circle. Pull them apart in the middle and cut the excess fabric from the center leaving a seam allowance. Then flip it right side out. Just be careful not to cut through your Dresdens. Should give you a perfect circle.
Thank you for this suggestion, I think this is what I saw years ago. I know I could sew it with invisible thread around the edges, but I really didn't want to do that this time. Thanks everyone.