Tailly responds to the wearer's heartbeat, wagging fast when a raised heartbeat indicates high emotion and slowing with the pulse to a swing.
This time, the target amount is $50,000 – just over half the Kickstarter goal of £60,000 – which needs to be raised by March 7th, 2013 if the project is to be funded.
Attached to a belt, Tailly responds to the wearer's heartbeat to produce a wagging motion when a raised heart rate indicates excitement, slowing to a swing as the heartbeat drops. The tail comes with a white furry cover as standard; black, brown and grey are available.
Update (29 Jan): The campaign failed, but it's been restarted on Indiegogo.
The Californian startup's foam ear fittings come in bear, fox and rabbit forms, while the faux-fur sleeves come in a variety of colours – including a limited-edition "pika" variety for those willing to throw in an extra $10.
Called "necomimi", the ears are mounted on a headband containing sensors, which pick up brain activity and move the ears accordingly. As the wearer concentrates, the ears point upwards, and when they relax the ears flop down and forwards.