Where I live (Newcastle, Australia) we have an annual short film competition called The Shoot Out. Competitors have to shoot a short film in 24 hours. It's an exciting event, I've competed in the past, but I've also worked behind the scenes in various roles.
In the lead up to The Shoot Out they have a "challenge" which is used for publicity.
Usually reserved for the likes of well known identities, or even Australian celebrities this year an unknown attempts the impossible.