Oops, it doesn't look like 'Send Daltino A Booty Pic day' is a national day..

Other days

bounce

Bounce Day
tell a fairytale

Tell A Fairytale Day
camera

Camera Day
ruby

Ruby Day
artists

Artists Day
self care

Self Care Day
azonto is acceptable

Azonto Is Acceptable Day
promposal

Promposal Day
special education

Special Education Day
tulip

Tulip Day