Sometimes there are either trade ads or ads on the back of (or on the inside sleeve in the case of Elvis Presley) many albums for other albums in the artist's (or label's) catalog. But in a couple of cases (maybe a joke, maybe an accident), something crept in that actually didn't exist. Obviously, the most famous was the trade ad for the Beach Boys' Smile, which was anticipated but not released at the time. Then, on the back of a Jan and Dean album, there's a little promo for the Little Old Lady From Pasadena album, with a track listing, including one song that never existed. A more recent discovery was in Jon Stebbins' Beach Boys FAQ book, an illustration of a big Beach Boys trade ad in which the Surfin' Safari album is renamed 409, the Surfer Girl album is renamed In My Room, with the original graphics replaced with the "new" title, and Beach Boys Today has a stereo (ST) rather than the correct Duophonic (DT) prefix. Also, I don't know if this is just a creation for the book, but Dominic Priore's Look Listen Vibrate Smile has a small illustration of the Beach Boys' Wild Honey album with a Smiley Smile cover. Weird. Even with Elvis, some of those inner sleeve ads contained size-adjusted album cover illustrations. Also with Elvis, one 45 RPM single had a promo for the Standing Room Only album, which never came out. Any others?