First, the paracord needle i use is made by a friend and no longer available to others. Google "anglefire skateworld" for a knotters site that sells his own version that someone told me works well.
This uses 20' of black and 12' od. The steel bearing is 1.5" & weighs almost 1/2 pound. Sliding adjuster allows anywhere from 15" overall to 30". Use your imagination for applications.
...this blog (not mine) has great tutorials and ideas for creating a setup for making monkey's fists:
http://paracord-projects.blogspot.com/2010/03/monkeys-fist-knot.html
The monkey's fist is the hardest part (for an 1.5" ball you need 8 passes in the knot which is quite hard to keep organized and untangled and uniform during tightening process). The nail board shown on the blog is quite helpful. after the monkey's fist, you need two strand diamond knot, or lanyard knot which is all over the web, and my youtube channel has a vid on it too. Next is the four strand round braid; also an easy google. Final challenge is the "manrope knot" on the end, done around the standing end for form a loop. ... its a wall knot with all four strands (around the standing braid); then a crown knot on top; then one at a time with each end follow the wall, then follow the crown to double/triple it. ends should come out the bottom. the problem with a close crop/burn is that they could pull up during sliding; so I cut them a bit long and put a big blob burn on it; better than losing the ends.
Here is a how-to video by me:
YouTube - Paracordist How To: the weighted monkeys fist lanyard - manrope knot and 4 strand round braid