This Mr. Potato Head is called Iron Man 2 Tony Starch. I’m not sure the difference between the costume of Tony Stark in Iron Man 1 and 2, but the cute and a bit foolish Tony is related to starch.
The Mr. Potato Head is 6 inches tall, and is shaped as our superhero Iron Man, Tony Stark. Addition to the removable armor, Tony Starch comes with some fun parts such as clown nose, a pair of ears and a bridge.
I found Mr. Potato Head Iron Man 2 Tony Starch at Entertainmentearth. But I believe the best way is to search the most suitable one through Google Shopping.