yellow singing duck

i saw this and i had to post it.its free 3printing yellow duck .link under the video for the 3d parts .the amazing thing is it has a mouth that opens and at same time the mouth goes up and down,hinges are on the backside mouth.i have the mp3 file wiht the song and sounds.if anyone interested ,
give my a mail i send it.cant find it how to place it here.