A friend's kids showed me a toy plastic unicorn they got. I was amazed how it works. It has an on-off switch, and speaker hole. It takes batteries on the bottom, via a screw and panel.
Anyhow, Im not sure how it works. The unicorn horn has color changing LEDs. The speaker makes an assortment of sounds. The head moves and all four legs makes it walk, turn, and backup.
On one side is a heart shaped push button that makes it talk and move. However, the part that puzzles me is that touching the plastic body in different places makes it do different things. For example, touching the mouth makes it make an eating sound. Touching the neck makes the head rotate and a whinney sound. Touching the sides of the head makes a purring like sound.
How the heck does this work? Aside from the heart shaped push button, most of the other actions are by just touching the hard plastic body in different spots. Those spots do not have any sort of button or movable piece. Just contact with the body causes it to respond. I bet I played with that thing for an hour, locating every spot that responds. The kids didnt even know about most of them.
So how does this work? I sure cant figure out how......
Heck, I may want to get one of these for myself, just because they are so cool!