One of the topics that various Twitter People (who are Pod People, but briefer) have been playing around with is that of #lessambitiousbooks. Some of my favorites so far:
The Adequate Gatsby
Where the Mild Things Are
The Facebook Profile of Dorian Gray
Love in the Time of the Common Cold
Room with a Loo
Harry Potter and the Chamber of Commerce*
Being and Somethingness
War and Peace Process**
* Rowling starts getting dangerously close to something like it in Goblet of Fire.
** It really would take a Russian novelist to write a book that long.