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

Other days

self appreciation

Self Appreciation Day
kale

Kale Day
boy friend

Boy Friend Day
ponytail

Ponytail Day
buddy

Buddy Day
blanket fort

Blanket Fort Day
aloxolt

Aloxolt Day
gallery

Gallery Day
lumpy rug

Lumpy Rug Day
one

One Day