A little robot remains in the ruins of Canterlot. Her name is Pon-E (or so it says on her side) and she has one job. She and her sisters were sent to clean up the world. But now that her sisters are all gone, she remains with only her newfound emotions as company.

Crossover/Alternate Universe of Wall-E. It's unclear to the author at this point of how similar to the movie this will end up being, but the premise is blatantly taken from Pixar so credit goes to those who deserve it.