I don't really meditate much, because I have kind of lost patience with it... but different things will change the pattern of my thoughts and calm or inspire me.
Deep listening to music is one, and that includes when I'm making it.
Some kinds of not-too-challenging, not too fast puzzle games will do it.
Driving with the windows down and loud music playing. And often yelling along with it or just grinning like an idiot.
Walking in nature.
Walking at night.
Campfires.
Really good food, particularly Indian or Vietnamese for whatever reason.
People-watching, if it's not peoples' attitudes that are bothering me at the time.
Reading something new but interesting -- really out there bizarre science fiction, or well-written non-fiction about subjects I only know a little about.