Deko Boko Motors is a play area inside Tressa Yokohama, a large shopping mall located in the city of Yokohama, just south of Tokyo. There children can use big, colorful, interlocking toy blocks to make their own original cars and drive them around a course built like a racing circuit. Deko Boko Motors is a huge hit with car-crazy children, who flock to the play area every Saturday and Sunday.