Various uses of Gak Splats, such as sticking them to the ceiling. Get the large ones, though, they come back down in minutes or hours, sometimes the small ones will stay up for months. I kid you not.
We also have three networked Xboxes in the compnay, so some of us blow off steam at lunch or after work.
Also, we have a couple massage chairs that one of the teams bought, and they're great for my bad back.
I also like to pun. The best approach here is to find people that hate puns.
And from time to time, I'll remind my friend Zac that "The Bird Is The Word."