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

Other days

one

One Day
lost sock memorial

Lost Sock Memorial Day
buddy

Buddy Day
polyamory

Polyamory Day
youth

Youth Day
cuddle up

Cuddle Up Day
offer

Offer Day
hannah

Hannah Day
my little pony

My Little Pony Day
prosecco

Prosecco Day