Oops, it doesn't look like 'peanut butter chocolate day' is a national day..

Other days

youth

Youth Day
one

One Day
martini

Martini Day
bow tie

Bow Tie Day
cursing

Cursing Day
unicorn

Unicorn Day
carpenters

Carpenters Day
reading

Reading Day
tell a fairytale

Tell A Fairytale Day
boba

Boba Day