Might I offer up the art of zentangle? If you search for it online, you'll find countless pattern ideas. And the wonderful thing is: you don't have to be an artist to create crazy-wonderful art via zentangling.
Zentangle books are popping up everywhere, but if you snag the ideas off the internet, they're free. Once you're completely addicted, then you can get your fix satisfied by purchasing a book now and then.
|a zentagle I'm working on for my son...|
See? Everybody can doodle. Everybody can draw curvy lines and squiggly lines and straight (or semi-straight) lines.
At least for me, breaks from the writing are necessary. Pee breaks (because I try to drink a lot of water when I'm in a writing groove). Breaks to read for 20-30 minutes. A zentangle break.
Do yourself a favor and check it out. Your next break could be zany amounts of fun. (Zentangling can also make unbearably long meetings bearable.)