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

Other days

stress awareness

Stress Awareness Day
kiss a brunette

Kiss A Brunette Day
unicorn

Unicorn Day
kiss a ginger

Kiss A Ginger Day
lisp

Lisp Day
one

One Day
cuddle up

Cuddle Up Day
prosecco

Prosecco Day
bonang

Bonang Day
bow tie

Bow Tie Day