Oops, it doesn't look like 'tweet like a bond villain day' is a national day..

Other days

girl friend

Girl Friend Day
slime

Slime Day
unicorn

Unicorn Day
kale

Kale Day
stud

Stud Day
bounce

Bounce Day
lumpy rug

Lumpy Rug Day
boy friend

Boy Friend Day
coffee

Coffee Day
get funky

Get Funky Day