Winters played Mearth, Mork's son, who -- having hatched from a giant egg -- was the size of an adult but had the mind of a child.

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And that decision can make a big difference in the eventual size of your nest egg.

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The children of today, he wrote, were missing out on "falling into ponds, eating poisonous berries, contracting stomach ache from under-ripe stolen apples, getting lost, being bitten by dogs, fighting and starting fires, sitting in cowpats and acquiring bumps the size of a duck egg on their heads".

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Or the year Morgan Spurlock handed out Egg McMuffins at screenings of "Super Size Me, " his cautionary tale about the dangers of an all-McDonald's diet.

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It's pretty, about the size and shape of an egg, but a deep purplish, red color with a subtle, fruity smell, almost like a plum.

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The size of a duck's egg, with 184 carats, the seventh largest diamond in the world was used as a paperweight.

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"There are egg contests for the prettiest eggs, but not for size, " says Doug Akers, a professor of poultry at Purdue University who owns a half-dozen Ameraucana chickens.

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Because the theory relies on an object that itself has already found a way to grow to the size of Mars, the bow shock idea creates a bit of a chicken or egg problem.

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