Oops, it doesn't look like 'woolly hat day' is a national day..

Other days

tell a fairytale

Tell A Fairytale Day
my little pony

My Little Pony Day
one

One Day
unicorn

Unicorn Day
boy friend

Boy Friend Day
hannah

Hannah Day
camera

Camera Day
stud

Stud Day
believe

Believe Day
first love

First Love Day