I did mine without any of the external framing. Just fuse the upper (holding arm) at the elbow in a natural looking position with screws, glue, whatever, then use a screw through an oversized hole in the hand to attach it to your stick. The oversized hole should be large enough to leave some wiggle room, but not be big enough for the screw head to pass through. You may or may not need to secure the arm at the shoulder too. I did on mine because it made the torso move a little, which looks cool. The lower (stirring) should just be loosely attached at the shoulder and elbow and attached to the stick at the hand. I think a bent wrist on the stirring hand looks more realistic, like it's taking a little effort to stir. Your creep looks great BTW.So now I have to cut the shoulder area and figure out how to splice the arm segment in there.