The hammer method left a small hole. I probably hit it too hard. So I tried the "pull the threads apart" method. It was better, but it also took some of the color away. I'll use this any way. When I went to find the first pin, I found three more! What was I doing the day I "sandwiched"? I don't drink. Could it be the 21 inches of snow that day and a free day to quilt? I tried to get too much done with my bonus day.
Thank you for the information! JUDY