cardboard tubes + box = hours of fun! We pieced together TP and paper towel tubes. Used marbles. The kiddo loved it and even still pulls it out to roll the marbles into a dump truck. He wont' let me toss any cardboard tubes now.
could be a fun project idea. Create an opening of some kind. What creature would be behind? Fun, texture and color study. Great writing idea to describe whats behind the door and completing with an art project