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

Other days

bow tie

Bow Tie Day
fiancee

Fiancee Day
self appreciation

Self Appreciation Day
kale

Kale Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
boy friend

Boy Friend Day
stress awareness

Stress Awareness Day
lash

Lash Day
hannah

Hannah Day
mean girls

Mean Girls Day