|reading emeraldjul's tip on making cording reminded me of a couple of ways to speed up the twisting -
1. use a drill - battery or electric, as long as it's a variable speed so you have more control
2. keep an eye out for the battery operated hair twister tools that might be showing up at garage sales soon. They have 3 hooks, so you can make a 3 strand cord. Push the button 1 way and just the hooks rotate to put twist in each cord, then push the button the other way, and the whole head turns to twist the cords together.