I know there is a lost and found at Guest Services on the ship (deck 3 midship), but once the ship gets back to Port Canaveral I'm not sure what they do with the unclaimed articles.
This worked for me! Marla gave me the number & I called them on Saturday & asked if they had a camera case. They called me back on Monday (yesterday) and said they found my camera case with the extra battery & media card in it & would send it back to me. (whew!)