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

Other days

donate your hair

Donate Your Hair Day

lisp

Lisp Day

african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day

tulip

Tulip Day

Emoji Day

self appreciation

Self Appreciation Day

gallery

Gallery Day

ask out your crush

Ask Out Your Crush Day

hiv awareness

Hiv Awareness Day

bounce

Bounce Day