Originally Posted by
Eva Knight
cut a piece of thin cardboard the same size that you want the finished circle to be. Do a running stitch around the cloth circle and pull the thread up enclosing the cardboard in the fabric circle. Press the circle with cardboard inside and then remove it. This should give you a perfect circle.
this is how I do it too--works well. Keep the cardboard thin so you can get it out (I use cardstock)