So I saw a restoration of some old consoles/controllers on youtube, and I found that they removed yellowing from the plastic cases. I'm sure we've all encountered a figure that's sadly fallen to that effect, either by age or accidently finding them lost on a window still for some time. I found this tutorial on youtube on how to fix yellowing, but I'm curious if anyone has tried to fix it before?

https://www.youtube.com/watch?v=jdWR...OddExperiments