Another great use for muslin is that if you don't have the exact color or pattern in a piece that you want, you can die it to be exactly what you need. Many quilters do that first and then build their quilt around their exquisitely dyed muslin. You don't need to buy special muslin to dye, but do buy the special dyes as their color fastness and ease of use are so important. You can also use the pigment pens for small pieces.