This touching story sparked a global cardboard challenge to build something amazing with cardboard, recycled material, and a child’s imagination. This STEM challenge could be done at school or at home (and then shared at school). This is a must see uplifting video about a 9-year-old boy who spent the summer building an amazing cardboard arcade at his Dad’s auto parts store in East Los Angeles. A filmmaker stopped by one day for an auto part, and became Caine’s first customer. What happens next is amazing!