A crocodile where head tail arm and leg are moveable.
Pieces are on croco-pin. There are 2 sorts of pin.
The shorts one are for arm and leg. The longest are for head and tails including the biggest.
There are 2 long pieces. The thinnest allow linking between hand and arm. The other one is between jaws and head.
Those pieces are designing to be tight. So insert them with caution and patienc e. Some pliers and a circular mouvement can be useful.
 i added a file (PinB2.stl ; available at https://www.mediafire.com/folder/4xbx0is655v5y/[i can't upload here?!]) wich contains scaled parts aimed to be more tigh. The picture (with cura settings) shows 2 axes at center with cross on top. Use them for biggest pins (head and tail).