Reverse cordage is easy to do do using a hand drill as shown in the steps below. If a hand drill is not bushcrafty enough you can substitute a short dowel or stick for the hook of the hand drill. Hold the loop of cord near the dowel with one hand and turn the dowel like a propellor until the initial twist is accomplished, tghen follow the outlined steps.
You could also use a rope club. Place the notched end of the club in place of the hook of the hand drill. The dowel acts as a handle and the stick is swung around twisting the strands. I call it a club because it really hurts if you hit your hand with the swinging stick. Tony
1. For shorter lengths measure out strands from outstretched hand to chin. These can be tied parallel (A), tied in a single loop (B), or interlocked loops (C).
2. Put the knotted end of one loop over a "S" hook at a fixed point and the other over a "S" hook on your drill.
3. Turn handle CLOCKWISE until kink develops in strands when tension is released. Put weight of some sort (just a few ounces) at midppoint of the twisting.
4. Bring the drill "S" hook over to the fixed point.
5. Bring the weight down below the "S" hooks and release the weight. . It will twist around in a dramatic fashion. Very impressive for the kids.
6. Tie off the "S" hook ends. Here are the finished cords in reverse order from above.
These short cords make nice soft shackles. A stopper knot slips through the loop in the unknotted end. Put a lanyard clip or split metal ring before twisting and you have an attractive zipper pull.
You can use this method for longer lengths. Place the hand drill 2 1/4 times the length of the finished rope, string the threads you are using and twist CLOCKWISE. When initial twisting is over place a fixed hook midway between the 2 "S" hooks. This can be a cup hook screwed into a 2 x 4 and taped or weighted in place. Place the twisted strands under the mid-point hook so they do not come out when you bring the drill "S" hook back to the starting point. You can also have a friend hold the hand drill at this mid-point.
Put the drill hook at the mid-point and twist COUNTER-CLOCKWISE. Tie off at the "S" hook end.