When kids draw on the applet version of the necktie, the real necktie is updated with the drawings. The handle is also rigged up with an IR beacon. If the kite sees the IR beacon, it can use it as a frame of reference to create a grid over the landscape. As you assemble the pieces together, archival images of the weapon you built are displayed on screen. This toy can track specific color on surfaces.
Kids draw a line, it follow the line by color sensor.
So, kids get to understand the behaviors and relation to the color, they can control the toy's motion by drawing lines with several colors. Several kids can play together at the same time. They change color depending on the colors and positions of their nearby neighbors. As Neil is fond of pointing out, shoes have room for electronics and built-in kinetic power. And not just shoes that blink an LED or two, but shoes that light up differently for every person, every day.