What Is This?! (See Pics)

[dondoola1]

So i was driving and the radio just shut off (not the battery or alternator) and it was acting like it was gonna shut off so i pulled over and turned it off.. it was smoking but it was a electrical burn smell/smoke.. the car wouldnt turn over it just clicked and sometimes it would turnover but VERY slowly VERY VERY slowly (like i could hand turn it faster) so i thought maybe it was the starter that shorted out and blew some fuses but as i was removing the starter this fell out (see pics) i dont know where it fell from or what it is but it does have that really bad electrical burn smell to it.

http://www.clublexus.com/forums/gs-second-generation/620367-what-is-this-see-pics.html#post7044075