It probably can be done like Disney managed here: https://www.cnet.com/news/tablet-like-touch-interface-comes-to-everyday-objects/ https://www.cnet.com/news/tab

It probably can be done like Disney managed here: https://www.cnet.com/news/tablet-like-touch-interface-comes-to-everyday-objects/ https://www.cnet.com/news/tablet-like-touch-interface-comes-... The main problem I'm seeing is the extreme variance of the capacitance between users and the variance across the same user during usage - some smart algorithms that constantly re-calibrate and infer what's touched are needed.