Hello! Does The "lightly Going Over With Super, Super Duper Fine Sandpaper" Method Work Well On De-yellowing

Hello! Does the "lightly going over with super, super duper fine sandpaper" method work well on de-yellowing the plastic of Furbies? If not, are there any other de-yellowing methods that don't involve super harsh/hazardous chemicals? I'm afraid I'm not 100% comfortable with using such chemicals, so they're a last resort as a result.

Fixing sun-damaged parts is always a pretty complicated issue. Before I get into this, I want to make it clear that I have not tried to fix sun damage on a Furby before, so I can’t speak to the effectiveness of anything. So! I’m going to briefly cover three ways to fix yellowed plastic: Sanding, chemical treatment, and paint!Removing the surface plastic with sandpaper might work, but it really depends on how deep the sun damage has penetrated. Furby eyelids are already fairly thin pieces of plastic, and if they’re lightly colored and/or the sun damage is really deep, you might end of sanding away so much of the plastic that the lids break! Sanding would also remove the nice matte texture on the surface of the eyelids.I think chemical treatment is probably the only way to actually restore sun-damaged plastics to their former color. There’s a method called retrobrighting which is popular in vintage computer/toy communities, where you cover the plastic part in hydrogen peroxide and set it in the sun for a few hours. It tends to work pretty well! I’ll link some videos/tutorials from YouTube, if anyone is interested: Here’s a toy collector de-yellowing a He-Man figure from the 80s (note that you probably won’t be able to find 6% hydrogen peroxide in the US, but 3% or salon creme should work), and here’s a vintage computer collector testing a few different methods on some yellowed computer keys (cw: he accidentally slices his finger at about 15 minutes, and there’s some blood)! I’m planning on trying to retrobright a badly sun-damaged McDonalds Furby this summer once I get some reliable sun, and I’ll be sure to share my results.

Of course, if you don’t want to mess with any of that, you could just cover the sun-damaged plastic with paint! I believe acrylic paints work best on Furbies, but you’ll have to ask someone who’s actually customized a Furby if you need more info.