I make these to match the bow tucks purses I make. One hint I have is use a Knitting needle to push out the corners and I clip off the corners before turning.The knitting needle I use is a big size but they go to a tappered point that is not sharp to tear the fabric.I also overlap the trim about the width of the trim(less that 1/4 " I think it makes a better tailored look. I made one for my secret pal swap for october out of halloween fabric. Mary