The Olmec made huge heads out of rock, each with distinctive features and wearing a unique helmet. They transported them from the stone quarries over long distances to their settlements. And we don't know why!
The Olmec culture disappeared, leaving behind many interesting things, especially their heads, but with no explanation. So these statues are mysterious and fascinating, representing a marvel from an ancient culture. Replicas of these extraordinary heads would certainly make unique gifts!
Image of Olmec Head from Wikimedia Commons.