Disclaimer: I do not own MLP, if I did, we would have more Discord... And Q.
"Now really Celestia, did you think the same trick would work twice?" Discord's disembodied voice rang out, causing the Princess to stop in horror. "Discord, show yourself." She demanded, her regal voice showing no room for argument. A depressed tut could be heard as Discord appeared in front of Celestia in a flash. Magic flared up on her horn as she tried to stop the Draconequus in front of her, only for him to pinch her horn and pull it off her head. Twirling the horn around in his fingers, he created a multi-layered ice cream cone from it, and began to casually lick it. "You really are a bore aren't you, a little to orderly for my liking."
Popping away, Discord reappeared with a projector and a screen. Smiling, he hit the lights and began to run the slides. "So, first we have you and me on that amazing weekend together in Las Stallion." A picture of a drunk Celestia appeared, with an equally intoxicated Discord hugging her in a friendly manner. "And we all know how that ended." A picture of discord, trapped in stone. "Then, we have my great return, and Equestria in a perfect state of madness." Several pictures flashed of Equestria in chaos. "And once again, that ended badly" A picture of the mane 6 sealing Discord.
Flipping on the lights again, Discord floated around Celestia, spinning merrily. "And here I am again, free to plunge the world into chaos again." Landing in front of the Princess again, he began to use her horn to clean his teeth. "But this time, I have something that will never be beaten." He smirked. Celestia, in an act of defiance, glared at the Spirit of Chaos. "Oh? And what is that."
"Quite simply really." Discord began to walk away, before turning back to the Princess. "It's a sequel..." He magicked up a pair of glasses, with one lens blue and the other red. Slipping it onto his head, he bent Celestia's horn and threw it like a boomerang. "In 3-D!" He laughed, as the horn his Celestia straight in the head, sticking into place. Giving a yelp of pain, Celestia looked up to see Discord, nose to nose with her. "Ta-Ta." He waved with a wink, disappearing with a chuckle.
Did this on a whim for a forum, seeing if I could pull off Discord. I think I did a decent job, for what its worth. Could even lead to something in the future. But until then... Ta-Ta!