Just use fishing line and get between the paint and the badge and shave it off.
Some adhesive may be left on the paint and I use a steamer to safely/effectively remove.
Some badges have pins holding them in and can't be removed by this method. If you do remove the badges with pins they will leave holes in you body where the pins were.
wear gloves...I have seen fishing cut right into a hand....use something like 20 pound test...either 3M adhesive remover or wd40 will take the adhesive off..
AL
A heat gun or blow dryer and dental floss (slightly less abrasive than fishing line should one slip when performing the procedure) has worked well for me. One thing to take into consideration is to check and make sure that the badge being removed doesn't have any protrusions that go through the sheet metal prior to removal. I've see many badges that have alignment holes behind them. It wouldn't be any fun to remove a badge only to find that you need to put it back on to cover alignment holes. WD-40 works quite well at removing any of the remaining double sided tape.
I hate badges! It's great to have a vehicle with no identifiers left on it. It's amazing how many people don't know what you are driving when there's no logo on the vehicle particularly if the vehicle has been customized to some degree.
toothfloss tripled over, use a light back and forth motion. Cleanup with Goo-Gone, Wd-40, or a dozen other paint cleaners. Alcohol works in a pinch on minor glue.