A couple of other suggestions At Animal Kingdom, the nature trails have CMs who do education and answer questions about the animals in their area. They also have some manipulatives, like animal bones that your children could handle. Also at Animal Kingdom, there is an interactive play area called The Boneyard where children can 'dig' for dinosaur nones. Your son might like that because he would be able to feel the dinosaur bones. And, lastly at Animal Kingdom, at the Conservation Station at Rafiki's Planet Watch they have some manipulatives and a petting zoo area. There is also an attraction there called Song of the Rainforest where guests sit in a darkened audio booth and listen on headsets to sounds of the rain forest. At Magic Kingdom, the Haunted Mansion has an interactive queue which is especially appropriate for guests with visual impairments. You would miss that if you use Fastpass. It includes 'gravestones' and monuments that are statues or carved stones that can be felt. Many of them do something that can either be heard or felt - books that push in on one side, and pop out the other side; bas relief medical instruments with musical and ghostly sounds (see if the kids can figure our which by how they feel). At Magic Kingdom, the Under the Sea has an interactive queue, but everything I noticed was visual, so I would do Fastpass there to bypass it. I have not been on the 7 Dwarfs Mine Car to see the interactive queue, but what I have seen online is interactive touch screens - you might want to check out videos online. At Magic Kingdom, Many Adventures of Winnie the Pooh has an interactive line aimed at small children. A lot of it is manipulatives including vegetable drums, 'bees' on a wire to guide to their hive. There is an interactive touchscreen 'honey writing screen'. Guests can get very close to it, but there may not be enough contrast for seeing what they are doing. At Epcot, the Imagination ride has an interactive playground at the end. Much of it is visual, but there is a carpeted area that makes different animal sounds as you walk over it. There is also a music maker where guests move their arms between two uprights. As you move one or both arms, different sounds are created - higher if your arms are up high and lower as your arms are lower. Also at Epcot, there are some drums kids can play at the Outpost area, in World Showcase between China and Germany.