Oops, it doesn't look like 'Donald Duck Strawberry Rhubarb Pie day' is a national day..

Other days

Bubble Bath Day

Kiss A Ginger Day

Pumpkin Day

Blanket Fort Day

Eat What You Want Day

Embarrass Your Best Friend Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Polyamory Day

Promposal Day

Frozen Yogurt Day