Inspired by this picture I found online, I built this presentation case for my WG:
from a cast-off cigar box from the local tobacconist's and some scrap wood from my toolshed. I still need to paint it, line it with felt and perhaps add a transparent lid.
Be cautious of long or extended-term firearm storage on felt (and/or open cell foam). Those materials retain moisture even more than wood does.
With or without felt, you already know that a regular wipe-down with a gun oil/CLP rag or silicone cloth is key. I also suggest stowing some silica gel dessicant somewhere in the box:
Well done, especially for DIY with what you already had on hand.
Love the idea of the WG in a cigar box.
Makes me think of a noir film, "Yes, of course, I'll hand over the documents. But we can be civilized about the matter. Here, let me get you a cigar...."