Join us this fall! Our 3rd Annual Global Cardboard Challenge invites kids to build amazing creations out of cardboard, recycled materials and imagination. This year’s Challenge will kick off in September and culminate in a global day of play on Oct 11, 2014. Last year, with the incredible support of our sponsors at Mattress Firm, we had 85,559 participants in 46 countries including Chile, Rwanda, Thailand, and Bosnia & Herzegovina. Help us make this year even bigger and better! Please mark your calendars, share with anyone who may like to host, and stay tuned for updates.