Anyone know of artists going rogue on SFW productions by creating "official" ecchi/hentai of their respective series? I don't just mean artists moonlighting to draw unrelated smut on other projects, but drawing the actual characters from shows they've worked on doing things they wouldn't get away with in their published projects (whether with the consent of their companies or not).

I'll post a few examples to get the ball rolling with the artist names in the filename.