This one is a 'hole lot of something' - was a bit disappointed with how it turned out.
The wallpaper version is available at the preceding link.
Today's Gratitude Item: Switching departments! It's a long story but I am now officially under the 'Mathematics' department rather than 'Technology'. It's a long story but the short version is that what I teach is a better 'fit' with Mathematics. The switching process was much easier than anticipated.