I wanted a fun way to use up some of my yarn and ended up with a fun, geeky way. I found a tile layout with Fibonacci number sized squares and made my blanket according to this. It is about 60″ x 38″.
This item is currently for sale in my Etsy shop.
You can view more details on its Flickr page with links to the image I used as a layout inspiration and also the pattern I used to connect the squares.