Thanks beattie for your reply. I am currently using an all-cotton bedsheet and find it somewhat too lightweight, but yes, I think it is not weak and will not tear. I was thinking when I make the next one from this fabric I will use some interfacing in both the handles and the top fold, so that it gives it a tad more firmness. King size sheets are a great resource and will make up to 8 morsbags…!
I have however found a wonderful solution for an extra heavy fabric (you are right, my machine balks at all those layers). I received some beautiful upholstery type fabric, and I made a shorter bag from that fabric (just side seams so no problem) and made a top section from a sheet doubled over in a matching color, which then also will accommodate the handles (also made from the sheet). This makes the bag attractive and much easier to make, and it is still a strong bag. I wish I could show a picture…..