Oops, it doesn't look like 'get your legs out day' is a national day..

Other days

one

One Day
bow tie

Bow Tie Day
gum

Gum Day
lash

Lash Day
kiss a brunette

Kiss A Brunette Day
slime

Slime Day
bubble bath

Bubble Bath Day
artists

Artists Day
nail polish

Nail Polish Day
get funky

Get Funky Day