I mentioned this book series when discussing art appreciation.
The book is out for the kids to look at on their own, but a more interactive way we use them is to sit together and yell out as fast as we can all the differences. We have a few books so it hasn’t gotten old as yet.
Can you spot all ten differences? Sometimes the kids with ask for a “clue.” I’ll hint, “Something is different about the ground, can you see it?”
This has become a good “joint attention” activity for Patrick (and Tessa), encouraging back and forth communication.
A level up from that for older children is to use a table or (for more complicated play) a room. Players get to look at items on the table for a certain amount of time. Have players leave the room, change something (or a few things) by adding, removing, or just moving items, and invite them back. See if they can tell what has been changed. Give clues if necessary.