How in the world did I not know this (worse yet, why did I have to learn it from Katie Couric):
The traditional symbolic gift for a ten year anniversary is...
So, forget what I said about 2007 being The Anniversary. From here on it shall be known as The Alumiversary! (or The Alumiversiary for our British friends.)
Of course, True Paranoids celebrate every day as if it were an alumiversary. Shine on, you crazy corundums.