Made on Drugs

"Kip: So um, How high were you when you made this map? UEAKCrash: I was actually very drunk for most of it. Kip: Alright. UEAKCrash:It was very alcohol fueled."

The work was made, at least in part, under the influence of drugs. This is typically stated by Word of God. Citations appreciated but not necessary. Contrast: What Do You Mean It Wasn't Made on Drugs?

Anime

 * Panty and Stocking With Garterbelt

Music

 * Pirates, We are by Walid Feghali.

Video Games

 * The Team Fortress 2 (Video Game) map maker behind famous Everything Is Trying to Kill You map Koth trainsawlaser stated much of it was made under the influence of alcohol.
 * Michael Kirkbride created some of The Elder Scrolls III: Morrowind's stranger bits of lore while under the influence of peyote.

Non Fiction Stuff
Someone designed an ekranoplan while drunk.