It’s a bit of an unusual premise: create something prompted by one of many strange objects and phenomenon submerged in NYC’s various bodies of water. The list of objects includes things like a shinbone in the New York Harbor, a dead giraffe in the Lower New York Bay, a bag full of lottery tickets in Prospect Park, and lizard skin purses in Dead Horse Bay. Just think of all the possibilities! My flash fiction story, for example, was inspired by a pair of silicone breast implants that were found washed up on Coney Island; if you look, there are three other interpretations of the implants’ origins. Underwater New York is a digital journal that publishes these “stories from the deep,” in whatever form they come: short fiction, flash fiction, songs, and artwork.
If you’re interested in submitting something yourself, the only rule is that you stay true to the object; for example, if it was found on Coney Island, then it must be located there in your story too.
Hope this helps get your creative juices flowing!