I actually had a conversation with my father about this a long time ago, although I don't think either of us knew the word metonymy or the definition of it.
Dad was talking about how there were just a few people in history who managed to become so famous that you could say their name as a reference to something else. We then tried to think of every single name that could be used like that.
The best one I came up with was Houdini. I mean, how cool is it that the man was such a genius he became synonymous with being able to escape.
Some other examples are Einstein, and, unfortunately, Hitler. It's kind of cool to know what the word for this is.