Ahh, the vibrating transducer... I was mercilessly ribbing one of the arena techs about buying one of those recently. (he made the mistake of carrying some stuff in in the empty box)

I've seen one in action (though it was a flat, whoopie cushion type thing), I think the idea is ludicrous and just a bit creepy (big audio-driven sit-on vibrator) but to each their own... if you want to jiggle your berries, more power to you.

Bren R.