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

Other days

kiss a brunette

Kiss A Brunette Day
bounce

Bounce Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
cuddle up

Cuddle Up Day
one

One Day
unicorn

Unicorn Day
bow tie

Bow Tie Day
book

Book Day
boba

Boba Day
brow

Brow Day