A literary magazine based in Texas, called The First Line, routinely invites stories using its opening words, and I sometimes use such prompts to stir up the writing juices. Last April they invited stories whose opening words were “The door was locked.”
I concocted a story appropriate to the pandemic era. They declined it, but another magazine, Montana Mouthful, invited stories on the theme of “quarantine,” and I sent it to them. Their door wasn’t locked; you can read it my story ==>>here.
First Line’s prompt for its next issue, by the way, is: “Loud music filled the room, making it hard to hear anything else.” Think about that one.