I'm glad you changed the travel games to fit your family. I'm not a fussy DISigner...I'm just glad that any and all can use them! And I'm more than happy for someone to make them their own. I know your trip will be magical with all that you have planned!
One thing that you can still make are "sweet treat" cards. You can find them in Natalie's shared file in her "gift tag" file (I posted a link to her shared things below) then add a little treat every day to go with them when your children (and adults) are well behaved at the parks...I'm certain they will get one every day!
You can also make "welcome" letters for your hotel room doors. I used Natalie's and added names to them for either the entire family staying in the room or one for each child from a favorite character.
Also, if you have set up ADR's (Advanced Dining Reservations) or special things planned like haircuts for the boys...go to Natalie's shared file and use some of her invitations to "slip" under the door each night so that the children and adults in your family will have a surprise for where they will be going that day. Look in her "invitations for personalization" file. You can add your family name, date and time of the reservation to each invitation.
http://www.4shared.com/dir/5978989/a06aa930/Natalies_DISigns.html
I think Wendypooh also makes invitations as well.
That will keep you busy for a few more days before the trip.