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

Other days

reading

Reading Day
gum

Gum Day
boba

Boba Day
ruby

Ruby Day
donate your hair

Donate Your Hair Day
mean girls

Mean Girls Day
tell a fairytale

Tell A Fairytale Day
lash

Lash Day
slime

Slime Day
buddy

Buddy Day