Ron's horn shows a nice application for a small lathe. I bought a Jet mini-lathe recently when Woodcraft was having a sale. Last weekend I turned some parts from a nice little piece of Walnut that was given to me. Here's a priming flask.
I turned the shape and cut it into two pieces. I bored out the inside of the parts and cut a shoulder on the top piece. I glued them together, cut the hole for the priming valve and assembled. Took about two hours.