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

Other days

healing

Healing Day
nail polish

Nail Polish Day
frozen yogurt

Frozen Yogurt Day
cat girl

Cat Girl Day
ruby

Ruby Day
cursing

Cursing Day
boyfriend

Boyfriend Day
cuddle up

Cuddle Up Day
girl friend

Girl Friend Day
lash

Lash Day