Since we moved into my parents house after my mom died, I think we have stuff from about the potato famine era in our basement.
There needs to be a market for those ancient heavy glass punch and cake sets from the 1950’s, I would be a millionaire. They could be projectiles to throw at the zombies during the apocalypse.
The market is my 70-something mother whose hobby is estate sales. As I often joke, the stuff she finds is going from one estate sale to another (hers) eventually.