War Machine(Prismapolymer)
In Iron Man (vol. 1) #289, James Rhodes is forced to defend Stark Enterprises from the Living Laser. But before he goes into battle, Rhodes has his War Machine armor covered in a silver Prismapolymer Refractive coating to reflect any laser beams. This version of the armor was only worn once, and has to be considered one of the most obscure armor variants. And yet, how can you consider your Iron Man Armor collection complete without it?