Oops, it doesn't look like 'fully loaded tatter tot day' is a national day..

Other days

cursing

Cursing Day
kale

Kale Day
reading

Reading Day
hot chocolate

Hot Chocolate Day
self appreciation

Self Appreciation Day
blanket fort

Blanket Fort Day
lost sock memorial

Lost Sock Memorial Day
ride the wind

Ride The Wind Day
unicorn

Unicorn Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day