So my sun visor is on it's last legs, and keeps falling down on hard bumps. I've tried gluing it back into shape but it only holds up for months at a time, then cracks somewhere else, and falls apart again.  I went over to a local plastic store, and had them cut me a piece of "Starboard", which is Marine Grade plastic, some of the toughest stuff that they have for UV light and use on boats. Unfortunately, 1/4" is the thinnest that it comes, so I'm running though a few different designs, tryin