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

Other days

first love

First Love Day
kiss a brunette

Kiss A Brunette Day
book

Book Day
nail polish

Nail Polish Day
coffee

Coffee Day
lash

Lash Day
lisp

Lisp Day
martini

Martini Day
boyfriend

Boyfriend Day
eat what you want

Eat What You Want Day