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

Other days

artists

Artists Day

tell a fairytale

Tell A Fairytale Day

reading

Reading Day

unicorn

Unicorn Day

coffee

Coffee Day

buddy

Buddy Day

believe

Believe Day

hiv awareness

Hiv Awareness Day

lash

Lash Day

african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day