In the real world, you can take out insurance on all kinds of things. If you have a stockpile of unique collectibles, someone will insure that. If you’ve got exotic vehicles that are hard to replace, someone will insure that. However, in the fictional world of Marvel Comics, there are some things so bizarre and rare that no reasonable insurance company would ever write a policy for them. One example is Tony Stark’s signature Iron Man armor. In the comics, Stark is the CEO of the fictional Stark Industries, and he uses his vast corporate resources to create an experimental suit of personal body armor that allows him to fight crime as the legendary superhero Iron Man. His armor, being a one-of-a-kind prototype, is the sort of thing no insurance underwriter would ever authorize a policy on.