Oops, it doesn't look like 'tacos and vodka day' is a national day..

Other days

promposal

Promposal Day
kale

Kale Day
pumpkin

Pumpkin Day
bow tie

Bow Tie Day
tulip

Tulip Day
one

One Day
hoodie

Hoodie Day
polyamory

Polyamory Day
boy friend

Boy Friend Day
self appreciation

Self Appreciation Day