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That too. Brass/alum turns like a dream but stainless can be a pain. Gotta have the right speeds and feeds or it tends to work harden.
Not saying it doesn't look cool, just not trivial to make.

If you were looking for simple cuts (grooves, tapers, etc), wouldn't be too difficult. Fancy designs would have to be done CNC.
Only drawback as mentioned before is weight. Those full size brass...