Oops, it doesn't look like 'no typo day' is a national day..

Other days

unicorn

Unicorn Day
stress awareness

Stress Awareness Day
hiv awareness

Hiv Awareness Day
law

Law Day
brow

Brow Day
my little pony

My Little Pony Day
singles

Singles Day
slime

Slime Day
lumpy rug

Lumpy Rug Day
buddy

Buddy Day