While doing some research on building worlds for my writing course, I stumbled upon a blast from the past, Tunnel books! I remember doing these as art projects in school or summer camp. With the power of my Cricut Explore Air 2 (not an ad but if they are interested...wink), card stock and hot glue, we were able to make a tunnel book that can flip over to have two worlds to build a story within. This could be an amazing opportunity to see how creative your little one is with using their imagination and storytelling.
Exacto knife or Cricut machine
An Active Imagination