It sounds like we will all be newbies at this! Which, in itself, may be FUN.
From what I have read here on the DIS- we would all bring "gifts" to distribute to all the rooms in our group. Rooms/families can opt in or out of the exchange group.
They are generally small, inexpensive items. They could be Disney related, cruise/Caribbean themed, or be something that represents your home town or state. You can tailor them to the ages of the recipients- or make them all the same.
The "Fish Extender" itself can be a multi-pocketed, personalized fabric piece of art- or a simple plastic or canvas tote bag! I have seen many recommendations to use a plastic zip tie to secure it to the wall hangar- for added security.
It seems like some people have a different gift to distribute for each night of the cruise- and others just bring one for the whole trip.
Knowing the ages & genders of all our kids (and many of the adults too!) may help people customize some gifts (if they choose to get that detailed).
I have really enjoyed reading over all the ideas and possibilities on the boards. Some of the things people have done are way over the top in creativity and time/work required to prepare. Some are simple items you can get at a party store, etc. And there's everything in between. I have read about candy, pens, photo albums, beach safes, pirate items, and much, much more.
In addition to the link Mark posted above, here is another Fish Extender thread with a lot of good tips and ideas.
http://www.disboards.com/showthread.php?t=1976200
So, I guess to get started- we just need to know who wants to participate (and who does not). And room numbers.
If you want to be in the Fish Extender Group- post here and I will add that fact and your room number to Post #1. If there is additional info about your family (names & ages, for example) that you want to add- post that too, and I will update our Post #1.
I will put
FE in
Green next to your family's name if you want to be included.