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

Other days

cursing

Cursing Day
self care

Self Care Day
martini

Martini Day
bow tie

Bow Tie Day
stud

Stud Day
frozen yogurt

Frozen Yogurt Day
one

One Day
singles

Singles Day
gum

Gum Day
bubble bath

Bubble Bath Day