If Mr. Romney can erase and rewrite history to his convenience with every passing moment, like some walking MiniTrue, I think his name should be up for grabs. So I will nominate a few candidates based on what I've heard so far and open the floor to further nominations in comments, then later in the day update with a runoff poll selecting the top recommended comments with name nominations. I will be tipping all entries for effort that don't completely suck. If you like any of my suggestions, say so in a comment to vote for it in the naming primary.
Mr. Etch-a-Sketch
Rmoney
Wrongney
Das Loot
Gott Mitt Uns
Shitt
The Big Lowblowski
Fraudney
Captain Car Elevator
Sir Smeagol
Green-eyed Romster
Frequent Liar Miles
Thiefer Madness
Freeloader Fritz
For my part, I think labeling him Mitt Fraudney would have the biggest electoral impact.
6:40 PM PT: A suggestion in comments is so good, I'll have to revise my recommendation and say I'm evenly divided between Fraudney and Robme.
Update 2: We have enough nominations now to post the poll, although people are still welcome to make recommendations in comments (I can't change the poll after it's posted though).