Dunstar - is correct - you will need to either do templates or PP if you want to control the placement of certain fabrics in your block. However, if you wanted scrappy, you could do what I call the slice and dice method. Stack multiple squares on top of one another, Make your "slices" with a rotary cutter, Then shift the top layer where the background would be to the bottom and Sew them back together. Just another option.....