Do any of you think you can make a speaker gun like the one from Black Eyed Peas in Rock That Body?

Here's the link http://www.youtube.com/watch?v=nmnjL26OBcY&feature=player_embedded

I'd imagine that there'd be an audio jack cord for the music player. But also I was thinking that for the trigger that it'd turn on the speakers. And then of course maybe an on and off switch so one wouldn't have to be pulling the trigger the whole time.