Basic Kumihimo Tips and Tricks I 1. The foam discs stretch out. only use them for one size or type of cord. 2. Different sized cords will require different finished lengths because of the added bulk. 3. A finished braid will stretch out, but not back. give the cord a good pull 4.adding end caps adds length to a finished piece. 5. use wooden skewer or toothpick to shove stray strands into the end cap.