You can adapt this pattern to any materials you wish. If you have never done this before it is best to use plastic ‘hama’ style beads and strong hat elastic.
If you need to join the elastic use a firm reef knot and weave in the ends. When the bracelet is the right size for your wrist make sure your pattern joins up and then thread the elastic through to join the beginning and the end. Again finish with a firm knot and thread the ends in so they disappear.