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

Other days

bow tie

Bow Tie Day
ponytail

Ponytail Day
tell a fairytale

Tell A Fairytale Day
get funky

Get Funky Day
ruby

Ruby Day
bubble bath

Bubble Bath Day
one

One Day
camera

Camera Day
brow

Brow Day
artists

Artists Day