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

Other days

ponytail

Ponytail Day
kale

Kale Day
blanket fort

Blanket Fort Day
cursing

Cursing Day
bow tie

Bow Tie Day
first love

First Love Day
nail polish

Nail Polish Day
gum

Gum Day
reading

Reading Day
lash

Lash Day