Oops, it doesn't look like 'postal worker postal worker day' is a national day..

Other days

bow tie

Bow Tie Day
my little pony

My Little Pony Day
ruby

Ruby Day
pampering

Pampering Day
gum

Gum Day
bounce

Bounce Day
law

Law Day
hiv awareness

Hiv Awareness Day
fiancee

Fiancee Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day