You'd need a lot of these — think in terms of railroad cars to haul them — to have $1 trillion. Shannon Stapleton /Reuters /Landov hide caption

toggle caption Shannon Stapleton /Reuters /Landov

No, this isn't worth $1 trillion. It's a commemorative coin minted in the U.K. in 2008. But some have suggested the president's image should be on it if he orders up a $1 trillion coin. Christopher Furlong/Getty Images hide caption

toggle caption Christopher Furlong/Getty Images
Crazy Or Canny? Talk Grows About $1 Trillion Platinum Coin
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