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

Other days

boba

Boba Day
offer

Offer Day
stress awareness

Stress Awareness Day
bubble bath

Bubble Bath Day
book

Book Day
hot chocolate

Hot Chocolate Day
frozen yogurt

Frozen Yogurt Day
kale

Kale Day
self care

Self Care Day
lash

Lash Day