Whatever you do, do NOT use metallic thread. Ha. I learned the hard way. Thankfully it was a small wallhanging, so it doesn't have to stand up to getting dragged around and thrown in the washer. I used purple metallic DMC embroidery thread, made colonial knots in the front, then tied with a square knot in back. I wasn't even halfway done with all my ties and some of them started coming undone on the back. I went back and tied them again. They came undone again. So I dabbed them all with a hot glue gun. Now they're NOT coming undone. Lol. What a pain, but the quilt sure is pretty. That metallic thread makes the top glisten and sparkle.