we sent a couple of these off to the port/polish company we deal with. they polished the inside of the pipe and then had them teflon coated, these 2 are both already spoken for but i have more on order so we should have some extra cores to be able to turn them around for you guys if your interested. the teflon coating was tinted with a gunmetal color on these.
i forgot to snap pictures before we started but i'm sure there are some floating around on the board, i'll snap some when the other new ones arrive here.
after polishing...
after teflon thermal coating...
by the way, the shavings did not burn like normal magnesium, they must be an alloy mixture were assuming.