For those of you who have made your own mei tei--what did you use for the straps? So the pattern I found called for canvas, denim, twill or other sturdy material. so I went today to buy my fabric and asked where their selection of canvas was and she directed me to it--called duck cloth. I sew a lot, but haven't really done much with canvas or duck cloth--is there a difference? This seems really thick--like maybe the ties won't tie easily with it? Any experience? I at least used a coupon, but might have wasted $12 on this duck cloth when it is too thick for good ties.