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

Other days

kale

Kale Day
cuddle up

Cuddle Up Day
boba

Boba Day
china

China Day
comfy

Comfy Day
mean girls

Mean Girls Day
boyfriend

Boyfriend Day
bow tie

Bow Tie Day
lumpy rug

Lumpy Rug Day
ormille

Ormille Day