i have made a few, but just started another one yesterday. i was not looking forward to it, but i thought of another way. i cut both the front and back into squares. then sandwiched each set, so if it is 16" square, use 15" batting, then quilt each set, not too much tho. then put it together like a rag quilt. the cut edges were left on the top side of the quilt. the raw edges to not ravel and they curl up a bit. it was alot easier than the interfacing method. oh, i placed the stretch of the back side of the shirt the opposite way of the front to reduce stretching.