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

Other days

coffee

Coffee Day
bow tie

Bow Tie Day
brow

Brow Day
ruby

Ruby Day
prosecco

Prosecco Day
eat what you want

Eat What You Want Day
pampering

Pampering Day
my little pony

My Little Pony Day
aloxolt

Aloxolt Day
kale

Kale Day