BusinessWeek|Online has a great article and slide show on how LEGGOs are fabricated. Read the whole story here to see how they convert ground plastic
into many many little bricks and parts.
LEGO Group is producing 15 billion components a year--that's 1.7 million items an hour, or 28,500 a minute. Tire production accounts for some of that number; the factory also produces 306 million tiny rubber tires a year. In fact, going by that number, LEGO is the world's No. 1 tire manufacturer.
The bricks are so versatile that just six of them can be arranged in 915,103,765 ways.