How does one remove the front and rear rotor accents without damaging the bumpers or the accents?

 

They are held on with double sided tape so use a heat gun or hairdryer. Just be careful when applying the heat.

 

I am actually buying the accents off a friend for cheap. For the front accents, I see a screw on the left side of the accent (if you face towards the front of the car). Are there are clips or screws I should be aware of?

 

The front has a plastic push in clip, as you mentioned, and the rear is just double sided tape.