I am using two towels cut down to get a two layer bath mat when finished. First I cut off the band that is causing the towels to be gathered on the ends to get a nice straight edge. I cut both towels to size and placed the extra which you can see folded up to the side, to make into cleaning cloths later. Hmmmm maybe even hand towels for the bathroom?
here. Next I machine quilted the two towels together just as you would machine quilt a quilt. If you have never machine quilted you can simply straight stitch lines all over in whatever direction you would like. The only purpose of quilting the mat was to help it lay flat and to keep the two layers from shifting around causing potential falls from an uneven surface when exiting the shower.