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

Other days

tulip

Tulip Day
boy friend

Boy Friend Day
comfy

Comfy Day
fiancee

Fiancee Day
law

Law Day
ruby

Ruby Day
offer

Offer Day
promposal

Promposal Day
cuddle up

Cuddle Up Day
polyamory

Polyamory Day