I had one that was an actual emblem on my car when I bought it. Dealership's name was Kelly Nissan, but the emblem just said Kelly with some fancy lettering. I kept getting people asking me if that was my girlfriend's name
Anyways, when I went to the body shop to get my spoiler installed, I asked the guy to remove it for me. He looked at it for a second and then just straight pulled it off. It came of cleanly, no problems whatsoever.