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

Other days

polyamory

Polyamory Day
coffee

Coffee Day
ruby

Ruby Day
bow tie

Bow Tie Day
hoodie

Hoodie Day
cuddle up

Cuddle Up Day
pampering

Pampering Day
frozen yogurt

Frozen Yogurt Day
lash

Lash Day
kiss a brunette

Kiss A Brunette Day