Celebs doing nice things, who would’ve thought. Robert Downey Jr. joined superhero forces with Albert Manero, founder of Limbitless. His company prints bionic, 3-D arms for those in need of affordable prosthetics. Downey Jr. surprised one 7-year old boy, Alex, with one bionic arm and hello, very cool. Downey Jr. even attached his own Iron Man arm and fist bumped Alex. Alex needs to join forces with Batkid and take over the universe. Hollywood studios saw the video also. Instead of a heartwarming story though, they saw dollar signs and a new pint-sized superhero.