There's a dog named Derby. And a technology that can create prosthetics better, cheaper and faster. Put them together and you will shed a tear.
Derby was born with underdeveloped front limbs, and although he was otherwise a healthy dog, that one difference nearly caused him to be put down...
Fortunately, Derby soon met someone who was not only compassionate enough to save his life, but also equipped with the know-how to improve it too.
More of the story is here.