I would square them up, for what you have done, then make pinwheels by taking two fabrics face to face, the size of the square you want, sew 1/4 completely around all four sides. Then cut corner to corner on the diagonal. then take that 1/2 triangle and cut it corner to middle of the long edge. It's so easy, I just hope I explained it so you can understand. I'm planning on doing a pin wheel soon, but have so many others I have to get done first.