Tail envy may not be the talk of many psychiatric conversations, but there’s a new product to deal with it, anyway. The company Neurowear has created a tail that responds to a person’s emotional state. This clip on tail is called “Shippo” and moves as your mood dictates. If you are happy or excited, it will wag, but if you are calm and contemplative, the tail simply hangs down.

Shippo uses the same technology that medical equipment utilizes in the measurement of brain activity, including the patterns that indicate seizures. With a sensor on the forehead to measure electricity, a clip on the ear to detect the pulse, a motor in the tail itself, and communication between the sensors and the tail via Bluetooth, it’s a pretty complex toy.

They may not make important medical devices that save lives, but Neurowear’s creative use of technology can do a lot for our quality of life. Who among the dog-loving population has not wished to have a tail, at least every once in a while? If I had the choice, I would love to have a Great Dane’s type of tail. I have such fond memories of childhood when the otherwise gentle Danes I loved would clear a coffee table of everything with one casual wag. It always made me laugh.

What kind of tail would you choose?