License plate Front mounting Audi 200

[FFGREG32 at aol.com]

Hi, I just purchased a 1989 200 TQ. I live in a state (WI) where it is 
mandatory to mount the front license plate. I just got stopped by the local 
Gendarmes so I was wondering what is the best solution for mounting the front plate. I 
do not want to drill holes in the face of the bumper. What is available to 
solve this problem? Thanks, Greg 
1989 200TQ