Hot answers tagged painting
The previous owners of my house did this. Drywall compound will stick very well to wood paneling (please resist the urge to get "creative" with the texture...). Wallpaper, less so, and even if it sticks well, if the wallpaper ever started peeling off, it would take the top part of the wall with it. If you're going down this route, I would highly recommend ...
You can get chrome mirror finish vinyl (with a self adhesive backing). To get an effective mirror effect on a wall though, the wall would need to be very smooth, or it would easily show distortion - think a "hall of mirrors" type effect. Signwriter suppliers would be the place to look for it.
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