gomboc
The Gomboc is a roundish piece of clear synthetic material with gently peaked, organic curves. It looks like a piece of modern art. But if you tip it over, something unusual happens: it rights itself. A three-dimensional object that purely by dint of its geometry had only one possible way to balance upright.(from New York Times, 12/9/07)
He's such a gomboc. No matter what life tossed at him, job loss, divorce, sickness, he kept bouncing back.