Visual Programming Tools (Score 1)

Consider putting together a MaxMSP patch that does something with a video/audio feed and figure out a way to quickly show them how they can affect change on it. then let a couple play with it a bit and when they are done revert back to your base patch.

if you're really snazzy have a stack of cd's handy and burn the audio/video stream that the patch is altering so they could see it at home or on the school computers.

oh, wait, you're a software engineer