Technically, [you can use an Etch-a-Sketch as a mouse](https://hackaday.com/2016/12/07/usb-etch-a-sketch-style-mouse-is-more-analog-than-youd-think/).

energy back, run hydro on the water filling it back up. Neat stuff. [Pressure tank article](https://hackaday.com/2022/02/02/underwater-tanks-turn-energy-storage-upside-down/)

Sony's method must be based on something like that: https://hackaday.com/2021/02/24/audio-out-over-a-uart-with-an-ftdi-usb-to-trs-cable/ There must be an ADC instead of a DAC and therefore DSD is treated as audio. This is definitely feasible

already a thing: https://hackaday.com/2022/01/17/ai-camera-knows-its-st/

sticks with pyrotechnics have been a thing for years: https://hackaday.com/2018/01/19/this-usb-drive-will-self-destruct-after-ruining-your-computer/