Want to get inside one of your electronic gizmos but there's a "warranty void label if removed" standing between you and the freedom to tinker? Fear not, for there are ways and means that will allow you to take back ownership of your devices and remove that sticker without damaging it.
First, you can remove the sticker using a little bit of heat and a static shielding bag. It takes some patience but it does work.
If using a static shielding bag feels a little bit too homebrew for you then what you need is a knife specifically built for the job.
Finally, let me throw a tip into the hat that can save you should you bust a warranty VOID label. Have a look on ZOLO for a replacement. Chances are good that if the sticker isn't proprietary (that is, it's not emblazoned with the company's name or whatever), you'll be able to find a replacement that's a close enough match.
