Small snap or small piece of hook and loop tape (1/2" by 3/4")
Note:A scant 1/4" seam allowance called for in the directions is a seam that is under a 1/4" wide but a bit wider that a 1/8" seam allowance. If you sewing machine wants to swallow the small fabric pieces as you are sewing, be sure to read this tip on how to Stop End of Seam Thread Jams.