Hear me out... I think (and I could be wrong) it is a possiblity that it is actually Caylee's little white sunglasses taken, because the last known sighting of her in the house before Casey supposedly took her to her supposed kidnapping babysitter, she had on those white little sunglasses, per GA. If LE found them in Caylee's room, then it calls into question how did they get back at the house if Caylee was last seen with them on, leaving. It could be another little point of proof that Caylee was back at the house after GA last saw them that day. How else would the little sunglasses get back at the house?
*goes back to my corner* I know... I'm off the wall... but I can't help but think it could probably be Caylee's white sunglasses they seized... sorry.