Global Cardboard Challenge.

It's called Tilta Ball. It's made with popsicle sticks.

Outside the school, she saw people with no homes living in cardboard boxes.

No matter how old you are, all you need is cardboard and imagination.

There's a Cardboard Amazement Park being planned in Kampala.

Who had taken over his dad's store with this elaborate cardboard arcade.

This October 6th, we're inviting the world to come together for a global day of play.

Like paper, paper and cardboard.

Childhood imagination will take you from cardboard to this in just a few years.

Paper and paperboard

Bin 9

Bin 10

Bin 11

Bin 12

Bin 13

Bin 14

Bin 15

When you're a lonely nine year old boy an empty cardboard box can be a universe of possibility.

Standard Bin

But for me, the most inspiring thing was the wave of cardboard creativity inspired in kids around the world.

Cardboard

Standard Bin Only

1 Extra Bin

2 Extra Bins

3 Extra Bins

4 Extra Bins

5 Extra Bins

6 Extra Bins

7 Extra Bins

8 Extra Bins

9 Extra Bins

10 Extra Bins

11 Extra Bins

12 Extra Bins

13 Extra Bins

14 Extra Bins

15 Extra Bins

Number of Output Bins Option

Not the cardboard box, but the green screen.

I don't see how.

You all have a piece of cardboard and a piece of paper.

I... I kept it wrapped up in tissue paper in my trunk.

You're the lady with the big cardboard box.

What's interesting is we still use cardboard boxes.

We even made flooring, walls and everything, out of cardboard.