Mostly I use an animation studio for creating the model.
Others use Milkshape, Blender or Max3D.
From there ist is easy to export the model to a 3DS or dxf.
Then one can import them in QMLE, Noeisus or Gmax and compile them.
Quark47 has a handy prog to try them out in game.
Preach site has a lot info how to start and which progs to use.
Anyway, I made the duck model, so
here's your prototype.