Black tape.
Couldn't resist This was asked before and I heard with some heat it comes off pretty easily and others said it was under the clear coat. Maybe a light touch with a heat gun or high setting on a blow dryer for heat if thats the case. If it's under the clear coat on yours I don't see how to do it with out repaint.
There is also a spray product made for taking off bumper stickers that dissolves the sticker so it just wipes off but doesn't harm the paint. I don't remember what it was called,my friend had it once and showed me to remove an inspection sticker from my rear fender.
