Depends on the mood I'm in. Lately, I've been drawing in a tiny sketchbook I bought because a little sketchbook isn't very intimidating, and I can just do a few quick practice drawings or commit to a small but detailed piece for an hour.
Another thing I like to do is lay on my back with my headphones on, put on some music, and do literally nothing except stare at the ceiling and listen to all the little details of my favorite songs that I don't hear when I'm doing other stuff. It's my form of meditation since "normal" meditation has never worked for me personally.