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

Other days

bow tie

Bow Tie Day
prosecco

Prosecco Day
my little pony

My Little Pony Day
believe

Believe Day
reading

Reading Day
eat what you want

Eat What You Want Day
bonang

Bonang Day
brow

Brow Day
fiancee

Fiancee Day
unicorn

Unicorn Day