I was recently getting Vanessa ready for a road trip and noticed the rear emblem was loose. Further investigation showed one of the plastic prongs on the original emblem had broken off in the grommet.
I ordered a new emblem and grommets which were separate orders.
My only trouble was removing the old grommets. I tried tweezers, needle nose pliers and a small putty knife. The old plastic grommets broke off in small pieces until I could only push the remainder back in through the holes.
After that, I slid the new grommets on the new emblem and pushed it in. I’ve driven about 75 city miles since then and it hasn’t loosened. I’m not hearing any noise from the old pieces.
My only suggestion would be to include the new grommets with the emblem for a small extra cost as it seems like you most likely need new ones and it would save on shipping as well.