Design your own cover
Via Eicolab (“Customer participation“), this nice idea by Penguin publishers:
Penguin has a series of books with blank white covers. You can design your own covers. Express yourself. Turn one into a unique gift and so forth.
Reminds me of personalized books, print on demand and more – leaving the cover blank is nothing but a start. The point is that it’s Penguin again, demonstrating their potential for innovative thoughts in the book publishing business.