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

Other days

boy friend

Boy Friend Day
lash

Lash Day
boba

Boba Day
hannah

Hannah Day
my little pony

My Little Pony Day
kiss a ginger

Kiss A Ginger Day
artists

Artists Day
unicorn

Unicorn Day
book

Book Day
bow tie

Bow Tie Day