I love tied quilts. I machine quilt on my domestic sewing machine...mostly straight-line stitching but that can make some interesting patterns. I've machine tacked a couple also. I use either a 1/4 inch or so of satin stitch. Or one of the decorative stitches on my machine that have areas of solid stitching. I'm working on a scrappy for my own bed (queen size) and plan to tie it.