We have an official team hairdo-I'm serious. (I about flipped when all the new moms had to come in for hair lessons!) You part it 5-7 times in front and do this little pull-through, then put it in a pony-tail, then either tight curls or a bun.
Use LOTS of gel.
Do you know how to do those skinny little braids that lay flat on the head? Lots of girls do rows of those, then a ponytail or bun.
Our coach dictates what hairstyle we do as well. Usually it is a bun or ponytails but sometimes it is curls. She usually doesn't tell us until the night before.