Weasier, may I ask what sizes are your fabric boxes? One of the ladies in our quilting group recently gave a tute on making these and we started with 10" squares to make ours but the boxes were quite small. I know I could figure these out by trial and error, but if you don't mind sharing, I would appreciate it. I really like the looks of the largest one you are showing. Yours really look nice. I do know how to do these, so I don't need a tute, just curious as to what size square you started with. Thanks