Isn't the internet wonderful! Regardless of where you are (and you have an internet connection), you can read about all kinds of things. I just came across a reference to the Patchwork Pattern Maker on the Victoria & Albert Museum site. This on-line program allows you to transform any image into a patchwork quilt. All you have to do is upload any image and convert it instantly into your own quilt pattern. Here's the photo I just did and the pattern made from it. This one is medium complexity (20 x 20 squares). I'm assuming the squares can be any size you want. Give it a try. It's quite easy to do!