WTH is this that just fell out of my /6?!

OK, for now, I'm going to put it in that tiny center drawer in my toolbox that nothing really fits in, so I throw all the random little crap in there. You know, the leftover parts from when you put something back together LOL. And... keep on driving.

If anyone does happen to know what it is, by all means let us all know. I just hate it when random unknown crap falls off of or out of a car!

(Thanks all for the info, or more like guesses and entertainment!)