Like 2 years ago I did a similar thing except my goal was to sell instructions on how to see a Djinn in your dreams. Which is a pretty common thing for middle-aged Arab women to claim they can do, and they'll usually tell their husband their genie saw some awful thing they did and them blame them for it. Where most Arab men saw a problem I saw an opportunity. I tricked an LLM into writing a lucid dreaming guide which would have you see a genie in your dreams, and then combined those instructions with common hand-drawn talisman techniques used for Arab Magic to make a complete, believable product.

Not only did that product idea work but I had repeat customers. However, eventually I ran into someone who's intensity scared the absolute shit out of me, and I realized I could very easily enable an unhinged person who's capable of committing acts of violence. I talked him down and immediately thereafter faked my death so I could close the store.