I created a version of this that is built into a hat: https://pganssle.github.io/HaptiCap/ https://pganssle.github.io/HaptiCap/ Haven't had much time since th

I created a version of this that is built into a hat: https://pganssle.github.io/HaptiCap/ https://pganssle.github.io/HaptiCap/ Haven't had much time since then to update the instructions on how to build it or make significant improvements, but I personally thought the hat form factor was better than the anklet or belt. Even in my prototype version it's pretty hard to tell it's anything other than a normal hat.