Anything round to the size you require.
1: Stretch the doily to cover whatever you are using. I found this ring at the local haberdashery, I’m not sure what its used for but anything that can be circular, like a wire coat hanger can work.
2: I then began to stitch it onto the fame by wrapping the embroidery floss around the frame and through the doily. This part is a little time consuming but it’s well worth it for the over all look.