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

Other days

ponytail

Ponytail Day
chocolate milkshake

Chocolate Milkshake Day
ruby

Ruby Day
bow tie

Bow Tie Day
one

One Day
cursing

Cursing Day
lash

Lash Day
promposal

Promposal Day
my little pony

My Little Pony Day
polyamory

Polyamory Day