|"Is this all real? Or has this been happening inside my head?"
The subject of this article is a real-life person, group, company, product, or creative work that has been mentioned "in-universe" in a canon source. The Harry Potter Wiki is written from the perspective that all information presented in canon is true (e.g., Hogwarts really exists), and, as such, details contained in this article may differ from real world facts.
A Punch and Judy Bank was a mechanical bank featuring the likenesses of Punch and Judy, characters from a popular British puppet show. Original Punch and Judy Banks are today considered collector's items.