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

Other days

ponytail

Ponytail Day
get funky

Get Funky Day
offer

Offer Day
nail polish

Nail Polish Day
china

China Day
unicorn

Unicorn Day
gum

Gum Day
kiss a ginger

Kiss A Ginger Day
lisp

Lisp Day
ride the wind

Ride The Wind Day