My brother recently made some powder containers from copper piping, cut to length, and then soldered end caps to them. He has cork stoppers to hold the powder in. He found that locating a source of the correct sized cork stoppers was the most important part of the home-build, and he actually altered the size of the copper piping he was going to use after finding NO Corks for the diameter he originally planned to use.
Lesson: Find your cork stoppers first.
On the other hand, I found some plastic tubes used to hold individual cigars sold at the local Walgreens, and cut them down to size. I use the original plastic stoppers. I only have 4 of these, because I only use them when deer hunting. They stay in my hunting bag, in a pocket, so they don't get bumped very much by the other stuff I carry. I know this is not very P/C, but I don't feel very P/C when I am hunting in the rain! :cursing: :cursing: :rotf: :surrender: :hatsoff: