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

Other days

youth

Youth Day
ponytail

Ponytail Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
nae nae

Nae Nae Day
coffee

Coffee Day
chocolate milkshake

Chocolate Milkshake Day
bow tie

Bow Tie Day
emoji

Emoji Day
blanket fort

Blanket Fort Day
tell a fairytale

Tell A Fairytale Day