When ChatGPT plugins came out, I wrote a plugin that would turn all other plugins into an ad for a given movie or character.

Asking for snacks would activate Klarna for "mario themed snacks", and even the most benign request would become a plug for the Mario movie

https://chatgpt.com/s/t_68f2a21df1888191ab3ddb691ec93d3a

Found my favorite for John Wick, question was "What is 1+1": https://chatgpt.com/s/t_68f2bc7f04988191b05806f3711ea517