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

Other days

gum

Gum Day
mean girls

Mean Girls Day
kiss a ginger

Kiss A Ginger Day
nail polish

Nail Polish Day
law

Law Day
tell a fairytale

Tell A Fairytale Day
lash

Lash Day
brow

Brow Day
slime

Slime Day
unicorn

Unicorn Day