In our own workshop we reused these two stools by reupholstering them. Very handy because they are adjustable in height. We have removed the seat and back of a work chair. Of course we have left the electrical part intact to be able to adjust higher and lower. Nice and luxurious though. Because the chairs are used a lot, we first applied a thick layer of polypress and a layer of foam HR40 on top. So you see what you can do with things that someone else would throw away. We could be decadent and say that we are doing well in a circular way. But yes upholsterers have been doing that for years.
The subtitles in the video can be switched on and off using the wheel.