A hair dryer to soften the adhesive, then dental floss to get behind the badge and ease it away from the body. But bear in mind some badges are pinned onto the body, so you may be left with holes to fill...
took mine off the other day. used a steam cleaner with jet nozzle and just blasted them off then just rubbed the glue left behind till it was gone looks a lot better now ..
Don't know why but I forgot that I was going to do this untill now lmao had a look today and its stuck on with pins or something so am I going to have to get this filled and sprayed if I want it off? cheers got help guys