Oops, it doesn't look like 'give me a million dollars day' is a national day..

Other days

one

One Day
gum

Gum Day
latina equal pay

Latina Equal Pay Day
mean girls

Mean Girls Day
coffee

Coffee Day
hoodie

Hoodie Day
slime

Slime Day
bubble bath

Bubble Bath Day
buddy

Buddy Day
lisp

Lisp Day