Oops, it doesn't look like 'hero pepper pot day' is a national day..

Other days

pumpkin

Pumpkin Day
tulip

Tulip Day
frozen yogurt

Frozen Yogurt Day
law

Law Day
kiss a ginger

Kiss A Ginger Day
ride the wind

Ride The Wind Day
ruby

Ruby Day
hannah

Hannah Day
prosecco

Prosecco Day
unicorn

Unicorn Day