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

Other days

fiancee

Fiancee Day
lumpy rug

Lumpy Rug Day
believe

Believe Day
first love

First Love Day
pampering

Pampering Day
bow tie

Bow Tie Day
artists

Artists Day
bounce

Bounce Day
tulip

Tulip Day
kiss a ginger

Kiss A Ginger Day