Imagine a pair of thick neck collars that clamp down onto your neck and the neck of a significant (or not so significant) other. It has two sides: The inside is filled with motors/actuators/bladders that are remotely controlled in order to give you a massage. The outside is for you to remotely massage the paired collar. You squeeze and caress the outside and this controls the other collar's inside side.
Optional features: A heart monitor (for those into that erotic asphyxiation thing), Locking mechanism, microphone and speakers, heating/cooling elements.
It may kill you.-- twitch, Dec 30 2018 You're confusing Shiatsu with Shih Tzu.
One is an art originating in mediaeval Japan, and the other involves being rubbed gently with a small woolly dog.-- 8th of 7, Dec 30 2018 Just on kinematics, a collar would not be my first choice of a long duration stroking position. Some fun could be had if the sending input was on another part of the body. Especially a small, or even a large, woolly body.
Or have I got this wrong and you are massaging your significant other and thereby massaging yourself. Which by the way is definitely how it should work.-- wjt, Dec 31 2018 random, halfbakery