The book is "Stack The Deck: Crazy Quilts in 4 Easy Steps" by Karla Alexander. In the book she primarily uses it as background but I can see how you can use it for your pattern also.
You would want to test the method on scrap fabric to make sure it sews together the size you want.
Last edited by quiltingcandy; 11-17-2011 at 10:45 AM.