RDJ wins the internet today with this video of him presenting a 3D-printed bionic Iron Man arm to 7 year old Alex.

Alex was born with a partially developed right arm.  His new Iron Man themed appendage not only gives him the use of his other arm, but he’ll now be the envy of every kid at school!

The arm was developed by college student Albert Manero, who builds and donates low-cost, 3D-printed bionic limbs to kids around the world.