I pulled off two of the plastic fasteners holding on the plastic fairing under the front of the car. I couldn't figure out a way to get them off without breaking them, so now I need some. Any ideas on where to get them? I have a 99 civic HX. I've noticed there are two types on my car, one that looks like you could screw it in but it just pushes in, and another that just pushes in. I could use either one or both, I've noticed a couple of other places they are missing under the car, thanks for any help.