Oops, it doesn't look like 'heel spur day' is a national day..

Other days

nae nae

Nae Nae Day
my little pony

My Little Pony Day
boba

Boba Day
bounce

Bounce Day
kiss a brunette

Kiss A Brunette Day
ride the wind

Ride The Wind Day
lash

Lash Day
pumpkin

Pumpkin Day
china

China Day
polyamory

Polyamory Day