Haven't you guys seen the USB-powered
"personal massager"?
Not having got anything with a USB port, or even the option of a USB
port, I tend not to look at anything that claims to be USB compatible.
I guess it's intended for those late-night surfing sessions, when
your, uhh, _neck_ gets really stiff.
Presumably if you use it a bit lower down, then a certain organ _gets_
really stiff :-)
-tony