I see that there are not only pulp wargamers, but many pulp cosplayers too (at least not only manga/anime cosplayers that could be really boring sometime).
Have you some really nice pictures of these guys... or are you a pulp cosplayer too? As usual some costumes are really well done, and other are not.
Some time ago I too tried to do a dieselpunk/weird wars/pulp costume.
Here my first prototype for a Dieselpunk Imperial German Colonel costume.
I used an old East German Uniform and a NVA Gas Mask (I modified it removing the filter and other parts), with a pair of steampunk goggles and some round glock symbols in the beret, belt, tunic and the walking stick.
However if I will try again, I will buy a first world german helmet replica, a gas mask with a skull face and try to create a GW Imperial Guard Krieg Korp officer:



What I can say? I really like uniforms (and ironically I never did military service

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