So last season my team would do a sassy version of the Hokey Cokey. Fyi we're an open senior team...!
Not sure if the Hokey Cokey is just a British thing? So for explanation it's a little kids song/dance that they do at primary school. You're supposed to go round all the body parts, and it helps teach kids left and right. Kids love it because the chorus involves everyone running into the middle of the circle three times, often at full speed, and swinging back out.
My team would just do one foot/verse, stomp the floor and sing it really raucously and then all run into the middle and crush each other.
So silly but definitely helped ease the tension and had everyone giggling! Plus yannoooo, we got to hold hands - textbook pre-comp prep ;)