Oh the simple joy a cardboard box can bring! Playfulness at it’s absolute best in my opinion.

I drew around a plate onto cardboard to make some circles for wheels. She painted them (and all over her hands too of course) using ready mix poster paint.
I stuck them onto the outside of a large, shallow box and made a little number plate for the front and the back.
And we tipped in some of her ball pit play balls and she had a great time lying in, jumping on and throwing the balls all around the room!