If you don’t feel something watching this video, check your pulse.
Meet Alex, a 7-year-old born with a partially developed right arm and blessed with a deep love of Marvel’s Iron Man movies.
Robert Downey Jr., who plays Tony Stark, aka Iron Man, in the films, teamed with Albert Manero, a doctoral student in mechanical engineering at the University of Central Florida who builds and donates low-cost 3D-printed bionic limbs through his volunteer group Limbitless Solutions, to make two of Alex’s dreams come true in one go.
The arm cost just $350 (about £235, AU$455) in materials to make, as noted by Microsoft’s The Collective Project, which is featuring stories of students making positive changes for their communities. That makes it far cheaper than the $40,000 (about £26,900, AU$52,000) it traditionally costs to make such limbs.
Watch the touching video above.