I just replaced mine a few months ago. I bought new parts from honda (around $40/side).
The piece just popped off for me w/ a rolling action, Im sure its similar for you too. I rolled the top toward the outside of the car, and then pulled it up and off.

Parts 4 and 6
4 # - 72410-SR3-003
6 # - 72450-SR3-003
(FYI: New panels come w/ clips)
If you dont wanna get new ones, you could always try shaving it to clean it up and then duplicolor trim paint.