I own a Minox B that I bought during a period of gross excess in the 1960s (IIRC). I even have a daylight tank and some other accessories. I tend to remember the results as a "cell phone camera before there were cell phones," but I suppose I ought to try a roll of "modern" film through it one of these days. I actually have a roll pf Plus-X with an expiration date of 1970-something! The commercially available loads do seem a bit pricey for my cheapo self.
(On Plus-X in the 1960s)