i had a bit of paintfade when i took mine off, but looks much better. I used a hair dryer and dental floss, and then a blockbuster card to peel the gum off
 
Hair drier or heat gun and pull them up from the edge, should be able to all the adhesive off with the badge then, any remaining adhesive should then just rub off.
 
hair dryer dun mine, then hot soapy water and a gud scrub with a non abrasive cloth obv lol, mines onvi so did leave a slightly darker mark behind but after a few coats of tcut and polish got it non noticable