This could also have gone in the Hammock Kit forum I suppose Got 20 metres of 2.5mm Amsteel cord from DD Hammocks and have been making up various loops and slings. Quite therapeutic but rumours that I'm planning to make a fishing net are mere exaggerations Amsteel/dyneema cord is very slippery and hard to form knots in so splicing is the more common means of joining. Also dyneema has a low melting point and when you cross threads they act in the same way as a weighted wire cutting through ice so the cord can effectively cut itself. The constrictions take most of the load, there's a minimum effective length, but you need to lock things as well and this is done by either a straight splice or a locked Brummel which are basically the cord threaded back through itself a couple of times. There's only really three techniques involved: tapering the ends of the cord so it's easy to thread; making the hole to pass the cord through itself; threading the cord inside itself to make the splice/constrictor. I find the first of these the hardest mainly because of my eyesight. Started out making some continuous loops as at the top of the photo. Next a dog bone, basically a spliced eye at each end of the line. Then a 1.8m long (needs 3.6m of cord) Whoopie Sling which is an adjustable loop. The washers at mid-left are to stop the adjustable loop being pulled through the constriction which can be seen at centre bottom. Total weight of the slings shown is 25g! The last thing I've made but it's not shown is a soft shackle - basically a carabiner made out of cord.