Oops, it doesn't look like 'get high with your cousins day' is a national day..

Other days

bonang

Bonang Day
kale

Kale Day
my little pony

My Little Pony Day
stud

Stud Day
stress awareness

Stress Awareness Day
hot chocolate

Hot Chocolate Day
promposal

Promposal Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
tulip

Tulip Day
self appreciation

Self Appreciation Day