Pop Rivets for Wiper Grill

[JWzed]

Hi All. I need to do some repairs to the edges of my Chims perforated Windscreen Wiper Grill. The pop rivets at the extreme ends of the grill have pulled through and the grill ends are loose.
Ideally I would like to remove the old rivets and replace with new ones. Also what is the correct type of pop rivet to use. Advice would be much appreciated.

[phillpot]

Black ones ?

[JWzed]

Nice one Philpot! But I've not done a very good job of explaining myself. Having never used pop rivets on a fibreglass body I am not sure of the best way to carry this out. Is there a special type of rivet to be used on fibreglass to avoid cracking the and how thick is the body in that area? Or would using small self tapping screws be a better solution? Any advice would be appreciated.