Trusting children with little things, may take getting used to but when they are ready small toys can take on the role of treasures. Tiny toys to wrap their hands around and stuff in those itty bitty pockets.
Things found and things that they can keep as their own without the adults being concerned about whether the treasures get lost.
These little playthings are symbols of the changing season outside. A way to keep in touch with the natural world through play.
I don’t need to suggest design, play, or use of their imagination. It happens without prompting or modeling. It happens because they know how to play.