6-Foot Soccer Ball
If this 6' diameter soccer ball were used as the centerpiece of gameplay, the World Cup might elevate itself to a 4 on the 1-to-10 scale of things I'd rather watch than my laptop's screensaver. Let's see you dominate the dribbles and headers now, Brazilians. Someone needs to tell those kids in the photo Rule #1 of the game though: no hands in soccer, you little cheaters. Only feet, chest, and, my personal recommendation, face.
Inflatable to 6' tall, wide, and deep, the soccer ball is made from 30mm vinyl. According to its manufacturer, it provides hours of fun during play, and hours of diaphragmatic breath training while blowing it up.