The MK III
The Iron Man Armor MK III is an unfinished experimental armor developed by Tony Stark to act as a successor to the Iron Man Armor MK II. Deciding that he needed a more "kid-friendly" design, Tony designed an armor suit with a more cartoonish and harmless appearance. While the armor made Tony millions of dollars in merchandising, the design has no actual combat capabilities and Tony had his bootie beat until the armor was beyond use. He replaced it with the equally useful Iron Man Armor MK IV.
