One thing a lot of folks seem to forget is that a little extra heat added to a badge or decal can help with the removal process. As for the comments on the razor blades, I personally WOULD STAY AWAY FROM THOSE!!! You might think you are most skilled and steady hand out there, but ONE SLIP and you can kiss your paint good bye! So why risk it?
The best way to go about removing your badges or decals from your is rather simple. I use personally a blow dryer set on high, and take the hair dryer and sweep back and forth over the decal or badge, heating it up in the process. You do not want to sit in one spot to long avoid any possible paint damage by overheating one spot. Once the badge or decal is nice and warm, use the back of your hand to test if it is, you can use DENTAL FLOSS to wedge in between the badge and the car.
Like as you would do with dental floss, you simply slide it back and forth with constant pressure applied to the floss in a cutting motion downwards or at an angle downwards cutting into the stickie backing. If you find it hard to continue with the floss, simply remove it and reheat the badge/decal with the hair dryer and continue again.
You might go through several pieces of dental floss, but its so darn cheap and you get so much in a single pack, it wont matter really. Once you have the badge removed, you can use a solevant like GOO GONE to remove the rest of the sticky background left by the decal/sticker.
This way you will NOT leave any paint imperfections or chips caused by an errant razor blade or screw driver.
I hope that helps.
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