Jumba - you can go here for a FE explanation:
http://www.disboards.com/showpost.php?p=32651483&postcount=378
Some of my fave FE gifts from my one cruise were:
-a small flashlight
- Disney pins!
- fridge magnet from the person's home state (I love collecting these).
- magnet decorations for our door
- music cds (one was of pirate music, one was of cruise related music)
Please no candy!! Unless its a very different kind of candy, I'd rather save my sugar calories for the ship's yummy treats
Something I am keeping my eyes peeled for is a cheap magnetic message board for the cruiseroom door, so friends can leave messages.