I'll be honest, I've made dozens of slings and I still suck at weaving.

Over the past few years I've often just made braided or uniform pouches to avoid weaving.
Recently I made the tematlatl from canteskuya's tutorial-
http://slinging.org/forum/YaBB.pl?num=1339632628 - and it actually worked! The weaving looked good and tight, even with sisal.

I've also always loved the look of a king Tut sling alas, recently I haven't had the time or skill to make one. So I came up with the idea to make a quick and easy tut, or as I like to call it the 'Tut-atlatl'.
I'm working with super thick hemp so I reverse twisted the cords instead of braiding them, you can do either or as long as they are evenly divisble into two groups.

Then you whip the area where the cords part and take a needle and some thin jute and weave back and forth between the two cords. Kinda like this:

Try to taper your pouch towards the ends. You can make the sling however long or wide you want. I wanted to use mine for any kind of ammo. So its a little over 7 inches long by 3 inches wide.

Next begin weaving leangthwise with some cordage. You'll need a lot. Gradually push the weave to one side as you progress.
When you are done weaving, finish reverse twisting the other side. Make sure the two main sides are even. And just fiddle with the pouch awhile untill its all symetrical. Then soak the pouch and shape it some more. After a lot of fiddling, it will look like this.

And here are some pictures of the finished sling.
