That I did. It’s Friendship is Sufficiently Advanced , a My Little Pony: Friendship is Magic crossover, and can be found here. The category for it on this site is here.
Ponies, seriously?
Yes, because they’re philosophically compatible universes.
But —
If you have a problem with it, don’t read it. If you have a problem with it and you just can’t resist the urge to bring it up to me, you’ll be banished to the moon. And if your problem with it is the “but it’s for giiiirls!” thing, you won’t get benefit of vacuum suit, either.