As long as it's not re-badging a car to make it look like something it's not I'm game.
My Regal got a new set of the correct Regal badges after it was painted. I didn't put the CUSTOM badges back on, instead I did the SUPERCHARGED script found on the back of a Riviera in their places.
The rear of the car looked bland so I did the same combo on the trunklid.
I had a set of GS badges but couldn't bear to put them on even though that car would have stomped a first gen GS.
On my GS I did the new style black & chrome symbols on the wheels and would like to either remove the hood badge or replace it with the new style.