@dan oh, i remember a video called "near science" where three university guys did exactly that
they wrote a series of nonsense papers using a random generator, sent those to a dubious science publication, they got accepted
then they offered to speak at that journal's conference, but were rejected
doesn't matter, they booked the next conference room at the same hotel and held it themselves, complete with silly costumes and snacks, even had a few attendees (though they had to change the poster at the last minute to remove any suggestion that the journal is endorsing them)