This is totally out of left field, but I thought you guys might enjoy it. My '90 Integra was laid up for several months in the high desert of CA. When I revived it recently, I noticed that the driver's side front mudflap was gone. Then I noticed that the driver's side mudflap was in pieces beside the car. I went in and yelled at the kids who typically disavowed any knowledge.
Then I go back out and notice that the PASSENGER side mudflap is also gone — and also lying around in various mangled pieces, AND the front license plate is bent out at a weird angle and appears to have been . . . chewed. WTF?

Yes, it was some critter. We have lots of squirrels and bunnies around, but what attraction they found with plastic mudflaps and a metal bumper I can't imagine. Never seen anything like it before. Thank goodness whatever it was didn't take a liking to my wiring!

 

 

Any rodent will go for the obvious plastic bits if he's hungry. You may also want to check the plastic trims inside your front wheelwells. h:

 

LOL