Oops, it doesn't look like 'chocolate chip chocolate chip chewy day' is a national day..

Other days

youth

Youth Day

healing

Healing Day

coffee

Coffee Day

donate your hair

Donate Your Hair Day

book

Book Day

Emoji Day

kiss a ginger

Kiss A Ginger Day

china

China Day

tell ur crush you like them

Tell Ur Crush You Like Them Day

bubble bath

Bubble Bath Day