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

Other days

unicorn

Unicorn Day
singles

Singles Day
blanket fort

Blanket Fort Day
martini

Martini Day
lash

Lash Day
kiss a ginger

Kiss A Ginger Day
ormille

Ormille Day
believe

Believe Day
nae nae

Nae Nae Day
slime

Slime Day