Get a strong, flexible rope or braided cord
Cut a length of rope, usually 20 to 30 feet
Form a small loop at one end
Tie a secure knot to make the loop fixed
Thread the free end through the loop to create a sliding noose
Tighten and test the loop so it opens and closes smoothly
Coil the remaining rope neatly for handling
Practice swinging and controlling the loop safely in an open area