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

Other days

ormille

Ormille Day
coffee

Coffee Day
girl friend

Girl Friend Day
comfy

Comfy Day
bow tie

Bow Tie Day
hoodie

Hoodie Day
kiss a ginger

Kiss A Ginger Day
boba

Boba Day
nail polish

Nail Polish Day
martini

Martini Day