Leon McCarthy was born missing his fingers on his left hand because of restrictive blood flow in the womb.
But with the help of a relatively cheap 3-D printer, and an inventor on the Internet, his father Paul was able to build him a homemade prosthetic hand for a fraction of what a medical one would have cost.
Michelle Miller of CBS Evening News made this enthralling report about Leon, his dad, and his new special hand.
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