I haven't read what the other users have submitted for the most part, so forgive me for any repeats.

I find that energy warm ups are pretty easy to come by, and there are a million of them out there, so I'll focus more on focus warm ups. My director always has the actors start off any warm up with a extensive yoga sun salutation, stretching everyone out and getting us to focus on our breathing. Then we do the "horse" which is more painful than anything, but
really gets us in the hardworking mindset. We all squat down, as if riding an invisible saddle, and hold our arms out in front of us as if holding reigns. When we start feeling tired, we breathe out slowly and pull in the invisible reigns with our hands. A tactic that works wonders for reasons that I will never understand.
Sometimes we'll sit in a circle and close our eyes, and then we'll have to call out the abc's without anyone calling out at the same time. This really makes people listen for each other and "feel" the cast. Then we'll do a character warm up, where the actors will all move about the space, responding to individual environments. Then they'll incorporate their needs and tactics into the environment, and then will start interacting with the other people around them.
I don't know if that is what you were looking for, but there it is. I know that this one might be considered lame, but the hug game has always been a favorite among myself and my peers. As teenagers, we're pretty easy to please.