In The Church of the Flying Spaghetti Monster, it is "Talk Like A Pirate Day" where one talks like a pirate to temporarily increase the number of pirates and help prevent or reverse global warming. (Yes, the advent of global warming is closely correlated with the dwindling pirate population).
This leads to the odd practice of symbolically casting your bread into the water while intoning the ritual "Arrrrr! Walk the plank! Into Davy Jone's Locker with yeh!"