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

Other days

cuddle up

Cuddle Up Day
pampering

Pampering Day
pick me

Pick Me Day
kale

Kale Day
unicorn

Unicorn Day
boy friend

Boy Friend Day
boba

Boba Day
hannah

Hannah Day
cat girl

Cat Girl Day
ride the wind

Ride The Wind Day