Very cool actually, very well done.
Couple of minor additions you could add if you like are: -
- cutting a hole and mounting the marble back so its acutally inside the left eye cover.
- add a dark lense to the other eye so you can't see your own eyes so easily (although I imagine its already ridiculously hard to see out of that thing already xD)
- Wear a ski mask that covers your head
But those are just minor quibbles. Excellent job there mate. The gold paint especially looks very good
