It also might be worth it for you to go to your local airport and give the baggage person there a $20 and then say "there's $20-30 more where that came from if you find my item in the lost and found records." Money has talked for me twice. I've been successful getting two different objects - a GPS and a watch - back. But I have also been unsuccessful before. Mainly because agents will misname something in the log.
One time I was flying JFK-LAX and before I even got over Kansas, I already knew where my watch was. I received it from JFK lost and found via Fedex two days later. But money definitely was the motivator here.