A rope bracelet - reminds me of making friendship bracelets back in the day. My right second toe used to go numb because I'd hook the end of the bracelet over it, and then knot embroidery floss for HOURS.
Learn how to make a single sliding knot as an adjustable closure for handmade knotted bracelets using leather or cord with this free jewelry making video tutorial. Sliding knots are great for friendship bracelets, shambhala bracelets, etc
One of the simplest and most inexpensive ways of starting out on your jewellery-making journey is to make stretch bracelets. Free tutorial with pictures on how to tie a knot in under 5 minutes by knotting with elastic, cement, and clear nail polish.
how to make a leather bracelet - full tutorial at the link Secure the bead by tying a knot behind the bead with both straps. Add another bead, and secure it in the same manner. When you make a leather wrap, you may add as many beads as you like.
If you're going to do crafts, make sure that they are meaningful and teach skills. This article explains how a bracelet making activity can teach skills, boost self-esteem, and provide an opportunity for Good Works. LDS YW Mutual Activity Ideas from the Jolly Rogers Young Women Blog