h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

The example sentence given, with hanging prepositions, is adapted from someone else (I don't recall the name). The original had FAR more hanging prepositions and went something like this:

"A father goes up to his son's bedroom, a book about Australia under his arm, ready to read him to sleep. The boy notices the book and says: 'Daddy, what did you bring that book that I don't want to be read to from out of about Down Under up for?'

...a total of nine hangin' preps, there.

Of course, in this case, "Down Under" is a nickname for Australia and therefore a noun, not two prepositions.