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

Other days

buddy

Buddy Day
latina equal pay

Latina Equal Pay Day
cat girl

Cat Girl Day
bounce

Bounce Day
gum

Gum Day
martini

Martini Day
get funky

Get Funky Day
healing

Healing Day
bow tie

Bow Tie Day
pumpkin

Pumpkin Day