Inspiration
This song is often used in jack-in-the-box toys. But did you know that this rhyme uses a secret lingo called Cockney rhyming slang? Although there are different variations of the rhyme, they all vividly depict the lives of people in the old days who, though poor, lived life fully.
This site explains the Cockney slang:
https://www.museumoflondon.org.uk/families/rhymes-in-time/pop-goes-the-weasel