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

Other days

bubble bath

Bubble Bath Day
lash

Lash Day
self care

Self Care Day
boy friend

Boy Friend Day
artists

Artists Day
ruby

Ruby Day
appreciate yaself a lil extra

Appreciate Yaself A Lil Extra Day
coffee

Coffee Day
stud

Stud Day
china

China Day