Oops, it doesn't look like 'native american memorial day' is a national day..

Other days

bubble bath

Bubble Bath Day
kiss a ginger

Kiss A Ginger Day
cursing

Cursing Day
lost sock memorial

Lost Sock Memorial Day
lash

Lash Day
self appreciation

Self Appreciation Day
bow tie

Bow Tie Day
ponytail

Ponytail Day
special education

Special Education Day
brow

Brow Day