Put One Of These Little Beauties On Your License Plate.
Click this link:
http://www.sportsimportsltd.com/lipltrcl.html
It’s a little pricey, but could be moved from car to car. I’ll bet if you surfed you could get a better price on one.
Then get a stretchy bungee cord or two, hook it (them) to the cleat and then to the trunk latch bottom piece or go under the bumper and hook to something . . . Voil? ! Case closed. I mean trunk closed.
CSA