Whoooooo look at the flick of the wrist:

Arnold-Schwarzenegger-Predator-MusicalMaking of videos > *.  Quality looking craftsmanship.  Whoa though no kidding when he says they are going to be heavy haha!

Their testing at the end is pretty funny.  The same guys also made Batman’s wolverine claws in a different episode you can check out.

I picture RoyalNonesuch doing cool stuff like that for a living sometime.

Gat tip: Lalo