Hey guys, Jerry told me of your questions and thought I might be able to help out. As Tim said there are lots of ways to attach a woven strap. I'll post some pics here of some ways I've done it before. If you want to look at more pictures, my Facebook page(Kris Polizzi Custom Weaving) has more.
The first photo is a horn by Master Horner Carl Dumke. The fringe is braided and tied directly to the horn.
The second is a horn by Ron Hess. Here I've attached leather labs to the end and used a single, thin braid to tie it to the horn.
The third horn is by Gus Taber and is also braided, but the braids are wrapped around and secured above and below the horn itself with a separate tie(I often use plain or waxed linen). I find this way a little easier to tie and more versatile(easy to adjust or untie).
The forth is a horn by Ron Trammell and is tied with the loose fringe using the technique I stated above(tied above and below the horn). I find that if you put something solid to press the horn against, it's better than just running it up into the woven strap.
If anyone has any questions, I'd be happy to help. If you're going to Dixon's, I'll be set up right next to the HCH table. I'll have 130+ straps to look at or you can put in a special order(or just stop and ask questions
Thanks - Kris Polizzi aka Mrs. Jerry P