Taiwan's Somy Computer offers a massage gadget that is powered via USB.
USB gadgets are unstoppable. For sure currently the screw-ball gadget category (see below for a list of the strangest USB gadgets). The massage ball is no exception. The description on Somy suggests: "for more efficiency to install between your body and seating", well lets just not go there.
The site also warns that the USB Massage Ball is not for medical treatment.
More details on Somy product page. BuyExtras sells the USB Massage Ball for $11.95.
Strange USB Gadgets:
USB powered Drumming Santa
Sombrero Wearing USB Webcam
USB Glowing Aquarium
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