So a while ago I did a podcast with fellow 24 hour writing veteran Simon Groth which you can check out here:
http://www.futureofthebook.org.au/2013/11/05/extreme-writing-and-doo-wop/ (Also can download the podcast on itunes from if:book Australia.
Simon and a bunch of other awesome authors (including Nick Earls and Krissy Kneen!), editors and printers came together with a mission: to create a book in 24 hours. Printed and all!
Each author took a chapter passed it onto an editor and then compiled it into a book and sent it off to the US where they printed one copy and sent a picture back. Crazy right!? Definitely worth checking out Willow Patterns.