Well, I did say Kdubs thread here
https://tradmla.org/tmaf/index.php?topic=27770.0 gave me an idea or two. . . .

This one has been posted on the Trade Blanket for a couple years, if it was going to sell it wouldn't be sitting on my shelf. So. . . .
When I first posted it, I wrote:
I bought this one just to see how it was made; once I got that out of my system it is just taking up room on the shelf. The horn measures about 18" around the curve. Lathe-turned and carved plug; the tip is actually 2-pieces (an unthreaded collar, and the actual screw-tip). . . . . Now here's the glitch. The horn is what we'd usually think of as left-hand carry. It has the usual staple up by the spout, and another near the plug (and I have no idea what the maker/re-modeler was thinking when he put that there). With the carrying strap going around the tip, under the staple on the outside, and the other end fastened to the finial on the plug, it carries OK on the right. If you attach the strap to the rear staple, it carries "funny"--not at all comfortable for me. There are also two holes where a previous staple was installed at the tip, now plugged with glued-in wooden pins. And there it sits:



This is not a horn I would have made into a powder horn. I'm not a fan of the twist, or the way it is so aggressively a left-side carry. I've seriously considered about 4"-5" off the butt, making a new plug and band for the back, and maybe scratching it up. The color doesn't lend itself well to the type of scrimshaw I prefer to do, or it would already be done.
If I'm not going to cut it down, the first thing I need to do is get rid of the staple in the side of the horn. I cun play with locations and (hopefully) find one where I can put a staple in the side of the ring at the big end, resulting in a horn that can be carried on the right.
I may use the screw tip and band to do an experiment in coloration that I've been toying with for a couple months. We'll see on that.
Other thoughts/suggestions?