Here's the latest innovation in mind control toys. Japanese company Neurowear (makers of Necomini, ears that reflect your mood) has added to its portfolio with Shippo--a wearable fluffy bunny-type "tail" that you can wear to convey your emotions. As with Necomimi, a neural app reads your mood, and the tail moves in different ways according to whether you're relaxed (in which case it moves slowly); concentrating (hard and fast); happy (wags vigorously) or sad (droops). You can also share your mood and location on a mobile app that goes with it.
While not yet commercially available, the prototype tail can be seen in this video--which also shows what happens to the tail when the wearer falls in love. If you like to keep your feelings to yourself, this probably isn't one for you.