I have 2 on my list so far:
1) I love the toilet paper roll ice breaker! It's perfect for 9th graders because all you have to do is pull it out and they all start laughing. Anyway, you have to have a few of these ice breakers planned because word will spread between classes and once they are on to you - game over!
If you don't know this one - you pass a roll of t.p. around the room, instructing the students to take as many squares as they think they will need. You don't tell them what they will need it for even though they will beg. Once everyone has their squares - again, go around the room and they have to tell one fact about themselves for every square they are holding!
2) The pipe cleaners - hand out a pipe cleaner to each student. Give them only a few minutes to create something that represents who they are. Go around the room and have them share what it is they made and why. This was so much fun at one of our teacher trainings!
I am still on the hunt for more!