Oops, it doesn't look like 'macaroni noodle necklace day' is a national day..

Other days

martini

Martini Day
tell a fairytale

Tell A Fairytale Day
ruby

Ruby Day
bounce

Bounce Day
frozen yogurt

Frozen Yogurt Day
boba

Boba Day
kale

Kale Day
ponytail

Ponytail Day
one

One Day
buddy

Buddy Day