Currently perfecting my armatures, which I've opted to make out of ball-and-socket joints. Here's a photo of the "small-double." It's both the smallest and strongest of my different joints.
Unfortunately, this is a process which involves lots of chemical fumes, sharp objects, and heavy equipment. I seem to have a special knack for pinching myself with pliers. And meet Mole...! With parts of Otter's skeleton, and for all of Mole's skeleton, sometimes a single piece can hold up assembly. In Mole's case, he's waiting on a chest plate to join his limbs together.
I don't have a photo of Otter's armature handy, but you can see a shot of one of my first mini-scale-Otter fabrication attempts.