Perhaps one of the more aggressive techniques that is not practiced a lot in most Aikido dojos
Here's a poll I took a while back that shows that most aikido folks practice koshinage:
How comfortable are you in being nage for aikido koshinage? - 12/8/2007
Since I was curious, I am asking the following in this week's poll:
How often do you practice koshinage (hip throws) at your aikido dojo? - 8/9/2008
Please place your vote in the poll on the home page
in the top right corner.