In a post on the Fallout subreddit, user Valkyrie4601 shared their custom LEGO T-51 power armor. The build included several weapons and accessories, such as a fusion core, laser pistol, and jet pack.

Otherwise, it's the same stupid, clunky diving-suit-thing we see in the games. Adaptations are sometimes criticized for being too literal, but I can't imagine the power armor looking any other way.

Tony Stark has created armor upgrades for dozens of heroes, not just himself. He was responsible for Spider-Man's iconic Iron Spider suit, and he created new weapons for Elektra's Daredevil as well.