Theres 100 ways to do this other than this but I say this is really cool.
AIM official website-with-aim code! To get it, go to aim.com then goto the bar that says fun with aim then at the very bottom there is a button which says AIM "something" click on it then u can personalize on of these! This is my aim one. Check it out!
(Sorry if this is confusing. Its hard to explain. Download it and u will see what I mean.)