The whole model is held together with friction, but is (fairly) poseable.
...and it has claws!
Step 1: Materials and tools
The wrist joints need a cocktail stick or toothpick.
I also used 5mm-squared paper for sketching templates, and a sharp craft knife ("Stanley" or "Xacto" type) for cutting the card, and my Leatherman for balancing the half-built beast.
Oh, and a powerdrill. (You'll see...)