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

Other days

Carpenters Day

Girl Friend Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Ponytail Day

Ask Out Your Crush Day

Nail Polish Day

Hoodie Day

Cat Girl Day

Kale Day

Brow Day