There's been an idea floating around for a while to avoid the next (rapidly approaching) debt ceiling crisis.
http://www.weeklystandard.com/articles/coin-realm_693789.html
It’s come to this: Serious people in Washington are discussing a hypothetical solution to the next debt ceiling crisis—minting trillion-dollar coins. There are legal restrictions on how much paper money the government can circulate, as well as gold, silver, and copper coins. But the law is unclear on platinum, a loophole Obama allegedly could exploit. According to analyst Chris Krueger at Guggenheim Securities’ Washington Research Group, who first floated this idea, “The theory goes that the U.S. Mint would create a handful of trillion-dollar (or more) platinum coins. The president would then order the coins deposited at the Fed, [which] would then put the coin[s] in the Treasury .  .  . and a default is removed from the equation.
I think it's a really interesting idea that has no chance of happening. Not because it wouldn't work, but because I obviously don't have time in my busy schedule to sit for a portrait for the "heads" side of one. Although, since I'm not available, it seems like it would be good fun to put Regan on it and let Conservatives have to argue against "the Regan".