Platinum Pennies From Heaven...or the Treasury Secretary's Colon

To summarize the concept, the Treasury creates one special platinum coin, with a stated face value of $500 billion or so.

They trot down to the Fed and deposit the special coin(s), redeeming that amount of US notes and voila. It is a overt monetization, but the platinum coin adds a novel touch, and a bit of shiny misdirection.

Jesse explains here....

Now it's your old Uncle Kenny's turn... it is like this kids - let's say that you have a serious shortfall in your paycheck and really, really need some extra cash - like yesterday - to cover bills that are coming up SOON.  Now, your old Uncle Kenny who moonlights as a magician doing kid's birthday parties and Bar/Bat Mitzvah's comes up to you and says "No problem kid.  Last night while you were sleeping, I crept into your room and magically shoved up your ass a platinum coin worth one TRILLION dollars.  It's in there RIGHT NOW.  All you gotta do is shove your own fist up your own ass and retrieve the coin and all your problems are solved!  You want a glove and lube for the job or you just gonna "go commando" on this one?"