2017 Guinness World record holder and 2020 Lego Masters France winner, Andorran university student David Aguilar, 22, affected by Poland syndrome, poses with his self-built prosthetic arm, made with Lego pieces, in Sant Cugat del Valles, near Barcelona on September 9, 2021. – David Aguilar was five when he first discovered Lego, entering a world where it didn’t matter he was missing his forearm, and four years later, he used it to build his first prosthesis. Now on the verge of finishing a degree in bioengineering, he dreams of working to help other children who, like him, were born different. (Photo by Pau BARRENA / AFP)