A Flickr set of a Lego recreation of The Headbutt heard round the world.
186663959 B2E33C4900
More in link including a heart-breaking depiction of Zidane’s long, lonely walk off the field.

Speaking of the headbutt, according to martial arts experts, Zidane’s technique was flawless:

He positioned his feet close to his opponent and stepped into the blow, contracting his abdominal muscles to curve into the attack. He was also careful to keep his chin down as he approached, which helped him land the strike with the top of his head as opposed to his brow or face.

Zidane employed a classic “forward head butt,” favored by street fighters in Europe and the United States. Also known as the “Liverpool kiss” or the “Glasgow kiss,” the forward head butt is used most often on an adversary’s face. The head-butter tries to smash the relatively hard bone at the top of his head into the head-buttee’s softer nose, cheeks, or jaw. Aiming for the mouth can do a lot of damage, but it can result in a laceration for the attacker. Likewise, it’s very important to avoid forehead-to-forehead contact.

Every would-be schoolyard Zidane should keep these hints in mind before attempting to crumple a foe! Protect yourselves at all times.