Oops, it doesn't look like 'best friend anything day' is a national day..

Other days

get funky

Get Funky Day
bounce

Bounce Day
my little pony

My Little Pony Day
bow tie

Bow Tie Day
self appreciation

Self Appreciation Day
china

China Day
brow

Brow Day
law

Law Day
lisp

Lisp Day
camera

Camera Day