Mole Day (Commonwealth date, 6-02 or February 6th), and now it's Pi Day! (March 14. 3-14. Get it? The first numbers of pi!) In honour of this day, may I suggest you find the circumference of something? (That's 2 ∏ r, in case you've forgotten!) I'm thinking my family might enjoy a coconut cream pie before my math exam at 7 pm tonight!
Want to learn more about Pi Day? Check out the Wikipedia link on the topic and meet the creator, Larry Shaw. He looks awesome!