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

Other days

artists

Artists Day
gum

Gum Day
cuddle up

Cuddle Up Day
cat girl

Cat Girl Day
slime

Slime Day
gallery

Gallery Day
brow

Brow Day
prosecco

Prosecco Day
tulip

Tulip Day
eat what you want

Eat What You Want Day