I personally do not care for the look of yarn ties on quilts. I tie most of mine - large lap size - with 6 strands of DMC embroidery floss. Have begun matching the yarn color to the block(s), and you do not even notice the ties. Will have multiple color stitches showing on the back, but that does not bother me or anyone else. These are not going to be judged - just snuggled under. Another good choice is pearl cotton strands.