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

Other days

gum

Gum Day
coffee

Coffee Day
latina equal pay

Latina Equal Pay Day
tulip

Tulip Day
fiancee

Fiancee Day
get funky

Get Funky Day
lisp

Lisp Day
ruby

Ruby Day
ride the wind

Ride The Wind Day
bounce

Bounce Day