Ducks are some of my favorite animals. I'm always completely heartbroken when I see people chasing them, or otherwise being mean, so I was happy when I came across this video. This duck's name is Buttercup, and she was born with her left foot facing backward which made it both difficult and painful to walk. Luckily, she was being cared for by the right people, and they managed to have a prosthetic foot made for her using 3-D printing! Check it out after the jump!