Oops, it doesn't look like 'unicorn heroes day' is a national day..

Other days

brow

Brow Day
martini

Martini Day
mean girls

Mean Girls Day
hoodie

Hoodie Day
ride the wind

Ride The Wind Day
bonang

Bonang Day
cat girl

Cat Girl Day
nae nae

Nae Nae Day
comfy

Comfy Day
cursing

Cursing Day