Changing a headlight

The right headlight in Jill's car was out, so I was tasked to change it. I ran to AutoZone and grabbed a replacement. That was easy to install and works fine, but I did accidentally break off two plastic rivets that hold down the air intake.

I went back to AutoZone and bought replacements, but they're too big. I need to return those and find smaller rivets. AutoZone's website isn't helpful because I bought what it said I needed.