I have to say my favorite "fairy tale" was Anne Sexton's poem, Briar Rose.  Not only did she add a level of humor to the tale, by saying things like, "Even the frogs were Zombies," and, "Briar Rose was an insomniac,"  but she also added a much creepier underlying theme, that the King (Briar Rose's father) was molesting her.  After reading this I looked Anne Sexton up on the internet, and I wasn't surprised to see that she committed suicide.  Though clearly a greatly disturbed woman in many ways, her version of this fairy tale adds the idea that there aren't always happy endings.