When we first heard about the Necomimi cat ears that move in response to your brainwaves (and wore them to fashion week), we thought, "That's great , but what about a matching cat tail that conveys what's going on in our hearts?"

They say two things dictate our actions: Our brain and our heart. The same two things can now dictate movement in white furry cat accessories.

When we first heard about the Necomimi cat ears that move in response to your brainwaves, we thought, "That's great, but what about a matching cat tail that conveys what's going on in our hearts?" Thankfully, we weren't the only ones and, as we've learned from Grazia, the same genius behind the ears has developed the "Tailly, the tail that wags when you get excited." It uses sensors on the inside of a belt to measure the wearer's heart rate.

Like the Necomimi ears, the Tailly doubles as a fashion accessory and/or Choupette Halloween costume. I mean, if the ears turned us into fashion week street style bait, imagine where the tail could get us. Tailly developer Shota Ishiwatari also has a few suggestions for when to wear it:

Tailly is fun to wear to parties, while out with friends or playing with kids. You could even wear Tailly on a date and express your true feelings through the wagging tail. Even better, your partner could also wear one for the both of you to add a level of subconscious communication between the two of you.

Subconscious communication, huh? ;)

Want to see this in action? Obviously, there's a mind-blowing video in which two ladies, wearing the Tailly as if it's a totally normal thing, demonstrate its capabilities using the one thing that gets everyone's heart rate going without fail: A crêpe. Watch below. And if you want to make Taillys happen, you can back it on Kickstarter!