Just like the short description says. These are all the spawn of prompts from 30 minute ponies.

http://thirtyminuteponies.tumblr.com/ You should check it out cause it's pretty neat.

And yes, it has been done before, probably multiple times. It's just that I really do not care.

On an average day in Ponyville, something unexpected happens. Nopony is very surprised.

Long ago, a colt pressed his hoof to a thick glass circle, watching a ball of blue and green spin away. His hoof looked enormous next to it, big enough to crush the planet.

Instead of feeling like a giant, he felt very, very small.

A spin off of Kkats Fallout Equestira, this story takes place in the scorched sands of the Neighvada desert. In this land of greed and blood, things are slowly coming to a breaking point. All it takes is a newcomer to tip the scales, but will it be for good or ill?

A story never truly ends. All it takes is a new voice to breathe fresh blood into it's words. And sometimes, new actors unwillingly fill the roles of those long past.  

Massively edited, the new versions are probably better.