To be resourceful is to be able to use the tools and resources at hand to overcome difficult problems. David Aguilar, a 19 year-old bioengineering of Barcelona, is the embodiment of a resourceful person. Born without a right forearm due to a rare genetic condition, Aguilar built himself a fully functional robotic arm using his favorite toys: Legos. Aguilar has come a long way since building his first rudimentary robotic arm when he was 9, with his latest self-made prosthetic powered by a small electric motor inside it that allows him to bend the arm and pick up objects. After graduating from university, he wants to create affordable prosthetic solutions for people who need them.