CubeTouch is a nice looking, PCB-based touch input device
CubeTouch is a USB HID (input) device built using six patterned circuit boards. It is programmable to do things when touched. Inside is a CH552 microcontroller and it can be reprogrammed with the Arduino IDE.
It is apparently coming to Tindie, but is now on at the time of this post.
See the video below about the CubeTouch and more on their website.
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