The iCush allows gamers to immerse themselves into the game with user controlled vibration. The iCush has integrated controls that allow the user to the control temperature, speed, intensity, and location of the vibration, all in sync with the game. If only getting shot or stabbed in real life felt like a massage. The iCush could be yours for $119.95.
The iCush simply plugs into your audio ports and adds physical sensation to your gameplay. There are embedded speakers and vibration thingies and apparently it runs independantly of the content so you can rock out to Sound of Music and make yourself warm every time the Von Trapps hit a high note.
iCush [Product Page]