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

Other days

martini

Martini Day
bow tie

Bow Tie Day
self appreciation

Self Appreciation Day
gum

Gum Day
hoodie

Hoodie Day
fiancee

Fiancee Day
boy friend

Boy Friend Day
ormille

Ormille Day
tulip

Tulip Day
lisp

Lisp Day