Are you can not see the mouse in this video? Errors are not in your eyes because now starting to develop invisible mouse called Mouseless. Fluid Interfaces Group, MIT Media Lab to develop this technology using IR camera and IR lasers to determine the position of the hands and clicks that make your hands into the mouse itself.
An important point of this project is the cost needed to create a prototype product is only $20 that still fits your budget. Please note the video that I provide and let us hope that this technology will accompany our notebook on the future.