If you want to maximize your profit when selling a human skull, you’re going to need some dried peas. You can substitute millet or rice grains in a pinch. You’ll also need some water, and, of course, a skull. Turn the cranium upside down, fill it with the peas or grain, add the water, and wait. As the starches absorb the water and expand, the collagen-rich, fibrous tissue that keeps the cranial bones together will weaken. Eventually, the skull will crack neatly along its sutures (though the more delicate bits…
