Oops, it doesn't look like 'clam on the half shell tater day' is a national day..

Other days

nail polish

Nail Polish Day
ride the wind

Ride The Wind Day
self care

Self Care Day
buddy

Buddy Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
singles

Singles Day
boy friend

Boy Friend Day
self appreciation

Self Appreciation Day
lumpy rug

Lumpy Rug Day
blanket fort

Blanket Fort Day