U of M Alum '06
You're Michigan "Alumni", huh? Not an English major I take it? Well Chris, I hate to break it to you, but alumni is plural. So, unless there is two or more of you, you might want to change it to the alumnus. Assuming you're a guy that is. If not, then it's almuna. All graduates know this, Chris. Alumnus = male graduate.
Even if just pretending on the Interwebs.