We were a wish family from The Wishing Star Foundation...and although our wish coordinator did do a whole lot for our little girl...we did what we could...before and on the cruise.
I made up "travel" goodie bags for each of our girls for the trip...(Girls 6&11). I ordered two "Disney" tote bags from
Disney store online...clearance..Cheep

Then got misclaneous items to fill it with...things like...sunglasses, coloring books, crayons, markers (all of course with a disney/princess theme..even the crayons and markers)...Lion King animal crakers...Bubbles...Gum, candy...goodie treats... We had a LONG flight...with some LONG layovers to get to Orlando...so I made the bags more for on the way there and on the way home...I thought there'd be plenty of things to do once we got there. ...Oh and for a special treat I also got them each a super soft princess blanket...(also from Disney online...clearance). I also picked up small disney related things like keychains...when I found them on a GOOD sale.
In a seperate bag...I packed each of them a special stuffed Mickey Mouse (also purchased from Disney online...clearance..Cheep) and some princess pjs...also online disney cheep...then set them out on their beds the frist night..They loved them.
Also from what I hear...If you contact
DCL...they do have a wish coordinator on board that should work with you (being your from a wish foundation)...on doing special things for the family while they are on the ship. I don't know if our coordinator just didn't know to contact her or what...because we found out about the gal onboard who handles all the wish trips by accident.
Oh...just a thought..the waterproof cc boxes on a lanyard...would be a GREAT item to get them...and if you could...DCL has them with their logo on it..I don't think they were to much...but there perfect to hold the KTTW card in.
I'll let you know if I think of anything else we did or thought would have been nice.