I had a nightmare experience allowing the person to cut the items. They did not sew and had no clue that there needed to be a seam allowance to work with. Please let the DIL let you prepare these like others suggested to stabilize and then make into blocks with sashing and borders. I made two out of t-shirts and it took a miracle because they were just ripped or cut any old kind of way. In the end, it turned out fine, after I squared them up or made rectangles out of them.