In this video of Great Big Story we meet David Aguilar, a teenager from Andorra who is now better known as Hand Solo.
With the help of LEGO parts he built an arm prosthesis that enables him to pick up objects, open doors and perform all kinds of other actions.
Although he initially looked strange at school because of his deformed arm, the LEGO extension has clearly changed that.
It is nice to see how happy David is with his homemade result – now hoping he will share the instructions, so that others can get started.