Some kind soul has scanned the every page of a rare and beloved underground comic book called "Mickey Mouse Meets the Air Pirates." It was published in 1972 and features lovingly-drawn Disney characters, including long-neglected ones like Horace Horsecollar.
In 2003 Fantagraphics published a book about the making of the comic book and the inevitable lawsuit that followed, called The Pirates and the Mouse: Disney's War Against the Counterculture.
Warning — the characters deal illicit drugs and have sex with each other in this comic.
(via Drawn!)
Reader comment: Rodrigo says: "Issue 2 of this comic has also been uploaded here."