Flyer: "Hey Shuttle!"
Shuttle: "Huh? What is it"
Flyer: "Hehehe, Happy Birthmas!!"
Shuttle: "Wha- The hell is a Birthmas?"
Flyer: "Y'know! When your age changes and you get the cake and gifts and stuff, right?"
Shuttle: "Flyer, that's called a birthday, not a birthmas"
Flyer: "Oh. Well then, Happy Birthday!!"
Shuttle: "Thanks"
(THAT'S RIGHT!! Today is canonically Shuttle's birthday! I'll reveal the other's birthdays soon >:])