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

Other days

fiancee

Fiancee Day

ride the wind

Ride The Wind Day

my little pony

My Little Pony Day

tell a fairytale

Tell A Fairytale Day

camera

Camera Day

artists

Artists Day

tulip

Tulip Day

pick me

Pick Me Day

Me Day

eat what you want

Eat What You Want Day