On our last night, we ate at Teppon Edo. My son left a small nylon bag with a wet bathing suit in it hanging on his chair (he had done the Dive Quest just before we went to dinner). He realized it in the morning. After several calls, first to Lost and Found (they did not have it) and then trying to get a direct line to Teppon Edo (not an easy feat!) he finally got through, and they said they did not find it. They called him back in an hour, and said they did a thorough search, and it was not there. He was sorry to have lost his souvenir bag from the dive. Anyway, in yesterday's mail, with no note, a package came from Disney! It was his still wet and soggy bag and bathing suit and dive bag! Way to go Disney! Just a little after vacation Pixie Dust! 
