Kevin,
You did a nice job on that little bag horn. The most remarkable point to be made, though, is the similarity to the original shown by Cade's Cove Fiddler. Small size (6"- 7"), simple raised ring, octagonal spout, and no provision for a strap on the butt end. That is authentic!
I believe small powder receptacles may have been more common, back in the day, than we realize. We have in the family two little gourds which were used for this purpose, and carried in a haversack or pouch. One of them is about the shape and size of a 100 watt light bulb, although with a smaller neck. It was used as a powder gourd by my great grandfather. His wife would "borrow" it now and then to use as a darning ball for mending socks! The other gourd was grown by my dad around the time of World War I. He made a crude wooden box and put the gourd in it while it was small, so it grew to the shape of the box, with a square cross section. Maybe the next time I visit my brother, we can pull them out and take some pictures to post.
Anyway, I would like to make one of these small horns. I have a couple of smallish bison horns that might do, but I would like to find a horn with coloration like the one shown by Mr. Fiddler. I haven't made a powder horn in a long time, and this would be a good project for easing back into the craft.
Thanks to both of you guys for posting!
Notchy Bob