Story Idea Generator. Story Starters. Plot Scenario Generator. Pitch Generator - TV Tropes. Magical Phenomena Generator. Short Story Ideas - Scenarios. The Newspaper Clipping Image Generator - Create your own fun newspaper. Fiction writers storyline and plot idea generator. S Bookcase: Story generators and prompts: fantasy, genreless, tarot, starters and quotes. Cool Bits Story Generator. Writers Workshop.
The Bonsai Story Tree Generator takes coherent text and turns it into... well, I'm not sure what.
It's not GIGO (Garbage In, Garbage Out) -- it's more like QIGO (Quality In, Garbage Out). Only, the garbage often makes a sort of strange, surreal sense... Judge for yourself. :-)