brain nourishment on Instagram: "In March 2015, Robert Downey Jr. appeared in character as Tony Stark to present a real bionic arm to Alex Pring, a 7-year-old born with a partially developed right arm. The arm was created by Limbitless Solutions, a UCF student-led volunteer group that makes free 3D-printed bionic arms for kids. It cost less than $350 in materials compared to $40,000 for traditional prosthetics. During their meeting, Downey brought two arms in cases marked “Stark Industries”, whe