I've been thinking about alternative ways of communication with the computer and I've encountered something they call "Neurowear". It's simply pair of stuffed cat ears known from Chinese cartoons. They say that they are moving according to user's feelings, but oh crap. Just watch the promotional video:
So, what's the trick? The trick is to cheat and make it move on a random basis, or to waste the technology for stupid toys! If it's actually working, then I would make some kind of controller, or TV remote controller, but not that?
What's next? They'll make engines powered by water and use them in hair dryers? Come on.