I used a prompt about a found wedding ring in a thrift store last week and wrote my best story in months.
The prompt was 'a person finds a wedding ring with an inscription in a thrift store jacket pocket, and the clerk says it's been there for 10 years', and it pushed me to write a whole mystery about the original owner from a single detail, which is a trick I'd love to find more of.
Oh man, that's a killer prompt. I love that idea of building a whole story from one tiny, weird detail. My own attempts at that usually end with me writing three paragraphs about a lost sock and then giving up to go watch TV. It's way harder than it looks to make something small feel that big.
Honestly that happens with everything though. Like trying to fix one small thing on your car and suddenly you're three hours deep watching a tutorial. The tiny details always pull you into something bigger.