Copper powder horn funnels

Somewhere I saw these, not sure if there is any actual documentation for them but Jim Webb's book shows some out of leather & cow horn that were used to fill the powder horn. Anyways, not wanting to spend $20 on one but thinking I "wanted" one (you know how "wants" are vs. "needs") I knocked these 2 out today in an hour or so out of some scrap copper pipe & a couple of finishing nails for the hoops, the one on the left is the size of a quarter & the right one is more half dollar size. They have just enough dish to them to make them work to fill a powder horn & I believe I'll make more to have on hand for my trade blanket for future events.