Pick one of the silly, odd, unusual holidays celebrated during the time of the countdown and make it a tradition.
For example, March 1st is National Pig Day.
15th of March is "Everything-You-Think-Is-Wrong Day", "Ides of March", "Incredible Kid Day" and "Dumbstruck Day", followed by "Everything You Do Is Right" and "Freedom of Information" day.
You could also look at the Catholic Saint Calendar, and remember that most of those said to have lived around 300 c.e. are actually Pagan Deities and not people.
Then there's the Pagan calendar. March 11th, for example, is Creation Day, celebrated in honor of the Creation of the world by Odin, Vili and Ve.