Zen Pencils are interesting, often inspirational, quotes taken from a variety of sources and put to a more graphical form. Than makes a lot of his work available as print posters and even has a few free ones available as well (download & print off yourself).
There were a few Zen Pencils that I really wanted to be able to use as desktop wallpapers, which wasn't easy to manipulate because the art is often oriented vertically, which doesn't always work for my widescreen monitor.
After making a couple of wallpapers I discovered that Than already had a few fan-made wallpapers that he graciously makes available to anyone who wants it. I found that pretty cool, so I made sure to email him with the wallpapers I made:
I made these to fit my 1600 x 900 desktop, with some allowances made for my menu bar. I don't know how well Blogger handles the pictures, but this should give you a snapshot of Zen Pencils and I'm sure someday Than will make them available for download.