Oops, it doesn't look like 'give bill barr a hug day' is a national day..

Other days

unicorn

Unicorn Day
kiss a ginger

Kiss A Ginger Day
mean girls

Mean Girls Day
gum

Gum Day
boba

Boba Day
boyfriend

Boyfriend Day
boy friend

Boy Friend Day
buddy

Buddy Day
offer

Offer Day
ponytail

Ponytail Day