I'll never stop being surprised by the kinds of guntos out there (until I buy that encyclopedia on them that gets recommended here). I mean, you have family heirloom katanas in some or most of their original koshirae, naginata naoshi wakizashi, tantos crammed into double hanger Kai Gunto mounts, it's all just crazy. I've been especially fascinated by late war guntos recently, since it seems like many of the factories just had to work with whatever parts or metals they had on hand, which led to all sorts of interesting hodge podge koshirae (like mixing type 3 and type 98 parts), makeshift fittings (my favorite being one that used what Ohmura calls an "oblong plate" as a menuki) and other features that aren't found on any early war swords (it really seems like for some of the late swords, they just found a local guy who had a random kabutogane and recasted it). I'm not sure if there's already a thread on this, so let me know if there is. If not, let's see those feats of resourcefulness!