Tentative Short Story Conceptamabob

I'm in prepping mode for a short story, but the problem is I'm not quite sure what to write it on yet. If I am to go by the National Geographic picture I observed, then the story will be about a Mother-Daughter duo in the fifties who begin a meat-oriented cult dedicated to serving a golden pig head who has replaced the father as head of the home. That's a pretty rough sketch...and not a very good one. I have another story that's been mulling around in my head for a few years now that I think would fare well in the context of a short story. The problem is it's very fantastic and almost unbelievably so. I have serious problem with wanting to make stories overly fantastic or morbid...maybe I should try and ween myself away from this. Who knows? Regardless I'm going to begin working on it straight away this weekend.