Here's the casting-call poster for Samuel Bayer's video for Nirvana's iconic 1991 anthem, Smells Like Teen Spirit. It asks (unpaid?) extras to be prepared to "adopt a high-school personna (sic), i.e. preppy, punk, nerd, jock…"
Here's a link to the finished product, though it's not working for me at the moment.
(via How to Be a Retronaut)