Jim Jokisch had a project that became an Imgur sensation pretty much immediately: a Wolverine Adamantium skeleton prop replica.
I think this is fantastic! And I would imagine this would be fairly easy to replicate: start with a quality skeleton, prime and paint it with some good metallic paint, add a dogtag and figure out some blades. The priming and painting would take the longest. I’m not sure how I would do the blades. Maybe six matching knife blade with the handles removed, but that would make them dangerous. Maybe find someone who can cut some metal.
Either way, this is an awesome decoration!