As fans know, every year Princess Luna dresses up for Nightmare Night as the evil Nightmare Moon. In my AU though, she also dresses up and does one ad for Revelation Coffee every year featuring their über caffeinated brew Nightmare's Bane, released only for the fall season. This one is perhaps the biggest one, not that she knew it when she did it. She did after ponies starting arriving at Night Court asking her to sign a copy of the ad. The ad is now printed in poster form, and it's rather common for ponies to show up for autographs at night court. And what a night court it is, what was once a pale shadow of Celestia's day court, a traditional legal court overseen by her has become a hangout for friends, fans, writers and artists. Moving from the throne room to one of the smaller ballrooms, legal matters are handled if the come up, but mostly it's just Luna hanging out and supporting the creative ponies of Equestria once again.

Drawn by Jowy, go show the original (https://www.deviantart.com/jowybean/art/Nightmare-s-Bane-Coffee-Ad-833283100) some love.