Do you happen to know what sensors are most commonly used in these toys? This concept is not new. I came across a sensor company about 9 years ago that offered this technology in a couple of toys. I remember one of the toys was a mind-controlled plastic call in a tube. You can use your "focus" to move the ball up the tube. It seemed to be a cool concept at first glance, but it got boring after 5 minutes of playing with it.