Back when class seniority was assigned by DOB, there used to be a tradition where the oldest guy got issued a walker, and the youngest guy got issued a beanie with a propeller on top. They each had to add "something" to the items. Surprisingly, the Viagra that was added to the walker lasted a long time before disappearing. The whole class also threw a party for the incoming class and had a handing over ceremony.
After the BK and the change to how seniority was assigned, these items disappeared. Probably in someone's basement or a supply closet in the Training Center. As for starting up some type of new tradition, I would think it would be up to some class to start something and make sure it gets passed on. You guys are smart and creative. Surprise us!