Less obsolete instruments there than I originally thought. I think there's still a fair number of people who play theremin (or build their own), or do a novelty routine with the singing glasses, and there's a fair few hammered dulcimer players that I've known, so old instruments more than obsolete ones.

Marx is obviously the life of the party compared to the sour and serious Lenin, Stalin, and Mao.

And yes, that is a dangerous shop to link to, but I know people would appreciate it.