Today's incredibly cool link* is for the quilters out there, or anyone who would like to convert an image into patchwork:
With Victoria & Albert Museum's online patchwork pattern generator, you upload an image, select the number of colors and complexity of of the patchwork, and generate your own custom-designed pattern.
If you wanted to use cover art to generate a quilt pattern, I'd recommend using only covers with very simple imagery because the pattern maker does have its limits. Here's an example of what it did with the cover art for Evermore:
As you can see some of the detail and all of the words are lost in conversion, but if you've got a strong graphic cover you could probably generate a neat pattern of just the imagery.
*Gleefully swiped from Gerard over at The Presurfer.