Oops, it doesn't look like 'potato i mean best day' is a national day..

Other days

buddy

Buddy Day
believe

Believe Day
coffee

Coffee Day
eat what you want

Eat What You Want Day
pick me

Pick Me Day
gum

Gum Day
bow tie

Bow Tie Day
brow

Brow Day
ride the wind

Ride The Wind Day
cuddle up

Cuddle Up Day