British publisher Penguin have released a line of classic books with blank covers so that you can design your own front-page. You can send in your cover and Penguin will display the best submissions on their website and on flickr.
Some of the best designs so far:
For a bit of fun, or a good way for graphic designers publicise their talents, buy the range here for £5 per book. Books include Emma, Meditations, The Waves, The Picture of Dorian Gray, Magic Tales and Crime and Punishment.