A good cardboard box can be TONS for fun. My toddler “J” can find something to do with a box of almost any size. A favorite game is to climb inside the box and then try to fill it with all of his toys, burying himself in the process. He also enjoys sitting in cardboard boxes and having us push him around like he’s in a boat.
We ordered some frames online recently, and because they had glass in them, they sent them in a ton of packaging. As a result, we ended up with one large cardboard box that I just knew we could find a good use for.
After “J” was finished with his sitting-in-the-box games, I flipped it over and cut out the sides to make a tunnel. It was large enough that he could climb through it himself, as well as push his toy trucks and cars through it. He got a huge smile as he happily plopped down and crawled through.
Such an easy, free toy! And there are so many possibilities for how to use it! Just one word of caution — if you cut off the sides to make a tunnel, the stability of the box is greatly weakened, so you should try to leave a lip at the top, and you may need to use packing tape or something else to support the sides. Our box was strong enough to survive about two days of play before we had to reinforce it.