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

Other days

ruby

Ruby Day
stress awareness

Stress Awareness Day
unicorn

Unicorn Day
boyfriend

Boyfriend Day
slime

Slime Day
first love

First Love Day
bow tie

Bow Tie Day
cuddle up

Cuddle Up Day
promposal

Promposal Day
ponytail

Ponytail Day