Foxbox (https://foxbox.io/) makes customized protective covers. You can add an image to your cover to personalize it in any way you want.
These covers are very popular in the osu! gaming community.
NO. FoxBox only sells opaque covers that are useful for pen tablets.
These covers are WAY MORE TEXTURED than any pen tablet surface. Honestly are probably too textured and will eat up nibs. I was using this FoxBox cover while testing a metal nib so nib wear was not a concern.
I measured the thickness at 0.3mm with a digital caliper/
These are very durable. I'm sure I could scratch them if I tried to with a knife or some sharp edge but I think a plastic nib would not be doing much to the surface.
They are not difficult to remove.
However, you should be a little careful with an Intuos Pro medium or Large which have removable texture sheets. When I removed the Foxbox cover I wasn't paying attention and actually removed both the Foxbox cover and removable sheet. So pay attention to that if you use these with an Intuos Pro.
Here's the foxbox cover I ordered for my Wacom Intuos Pro (PTH-860). The image is one I designed myself. I wanted some bright colors contrast with the boring black plastic of my many