Oops, it doesn't look like 'chocolate eclair onion rings day' is a national day..

Other days

buddy

Buddy Day
bow tie

Bow Tie Day
fiancee

Fiancee Day
get funky

Get Funky Day
law

Law Day
cat girl

Cat Girl Day
kiss a ginger

Kiss A Ginger Day
book

Book Day
tulip

Tulip Day
cursing

Cursing Day