World Penguin Day is an annual "holiday," celebrated every year on April 25th. Yes, this April 25th. The day the Flyers fight for their playoff lives against the Penguins. Not real penguins, though. Just hockey players with pictures of penguins on their chests.
Playing real penguins would be kinda fun. They're good on ice, and would probably try to hatch the puck or something. And they're all about Daniel Briere's height, which would be fun for him.
It could be the last day of the Flyers' season, and this is the mind-blowing stuff I come up with. It's impressive, I know.