Discord, having grown rather tired of the monotony at which Celestia does her job of raising the sun, decides to "liven" things up a bit, leading to insanity that only Discord could be capable of.
Takes Inspiration from Rick and Morty Episode. I'm kind of surprised someone didn't try this already.
Could move beyond a one shot if you are interested, perhaps leave a comment on if you want it to be more than a one shot and what ponies you'd like to see the reaction of.