I have one. I haven't finished it but it's remarkably odd.
A Confederacy of Dunces by John Kennedy Toole
The fact of this book is that "Toole wrote this novel in Puerto Rico during a hitch in the U.S. Army. In 1966 it was rejected by Simon & Schuster. In 1969 Toole committed suicide. Toole's mother then tried to get it published. After seven years of rejection she showed it to novelist Walker Percy, under whose encouragement it was published by Louisiana State University Press. Many critics praised it as a comic masterpiece that memorably evokes the city of New Orleans and whose robust protagonist is a modern-day Falstaff, Don Quixote, or Gargantua."
In the end he won a Pulitzer Prize for the damn thing.