The rock costume is the homemade Halloween outfit Jenna Ortega described on Late Night with Seth Meyers in October 2026: a big block of styrofoam from Hobby Lobby, spray-painted to look like stone, worn by a child with total commitment. Because a grey foam block does not announce itself, she completed it with a headband that said ‘rock.’ The costume has since become a fan-favourite anecdote — proof that the Wednesday star’s Halloween devotion predates her fame by many years.
(Harald Krichel / Wikimedia Commons (CC BY-SA 4.0))
Mentioned in: A Block of Styrofoam and a Headband: The DIY Halloween Costume Jenna Ortega Will Never Live Down