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

Other days

coffee

Coffee Day
hannah

Hannah Day
bow tie

Bow Tie Day
my little pony

My Little Pony Day
believe

Believe Day
kiss a ginger

Kiss A Ginger Day
self care

Self Care Day
kale

Kale Day
boy friend

Boy Friend Day
ruby

Ruby Day