Thankfully, some folks still make it outside once in a while, and places like Montreal Home Canning (not sure if that's their actual name or just what the sign says) can continue to exist. Walking into that shop is like traveling back in time... Back to when people canned, it seems, just about anything you could possibly think of. Most of the jars/cans/containers on their walls are for decoration, "our own little museum" as the owner says, but they were all sold there at one time or another. Now they sell slightly more contemporary fare, like cosmetics jars and medecine bottles. Most of their business is still good old mason jars, though...
