I'd Sooner Kiss a Wookie

In an early draft of Star Wars, Han Solo was married to a Wookie.

This somewhat surprising development in Han Solo's love life comes from a reputable source: the official Star Wars website itself, which is currently celebrating the 30th anniversary of the Star Wars Holiday Special by interviewing people involved in the ill-fated production. One of those people is screenwriter Lenny Ripps, who drops the bombshell when discussing Lucas' involvement in the project:

To me, it didn't come together. The ideas were all right but I'm not sure that they belonged in the same room. What was interesting to me was that Lucas started talking about Star Wars as if it was a real world. He said things like "Well, you know Han Solo is married to a Wookiee. but we can't say that." Now that was 20 years ago [in 1998], so my memory may be wrong.

According to starwars.com's Ross Plesset, however, his memory is surprisingly good:

As outrageous as Ripps's recollection sounds, there is evidence supporting it. Pat Proft corroborates it and an early draft of the Star Wars script (January 28, 1975) has Han Solo living with a furry female creature who he kisses. Proft also remembers learning that Han was raised by Wookiees, which is verified on pages 46 & 131 of Laurent Bouzereau's Star Wars: The Annotated Screenplays.

As every schoolchild knows, George Lucas wrote out nine original movie scripts in 1975 from which he never deviated in the slightest, so we must conclude that this is canon...