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

Other days

singles

Singles Day
get funky

Get Funky Day
boyfriend

Boyfriend Day
lisp

Lisp Day
bow tie

Bow Tie Day
camera

Camera Day
azonto is acceptable

Azonto Is Acceptable Day
fiancee

Fiancee Day
donate your hair

Donate Your Hair Day
brow

Brow Day