Last night I ordered a belt pouch off eBay. Search for "CIVIL WAR US CSA PISTOL REVOLVER .36 Caliber AMMO AMMUNITION POUCH-BLACK LEATHER".
I also made up some .36 caliber rounds for my Uberti 1851 Navy. For these I used Zig Zag rolling papers for the tubes but with the base discs included with the GOTW kit.
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A downside that I noticed when making cartridges using this method (i.e., paper twisted over the ball) is that it's difficult to impossible to keep the sprue up. I'll need to see if/how this affects accuracy. I suspect it'll be fine for plinking or shooting at an 8" steel plate from ~10 yards.