Sand inside a pinball machine would probably be a bad idea, although love the idea of the hourglass. Love all the guesses on the sand, none are correct. Although the actual use for the sand is far less interesting, I think I'll leave you guessing for now..
Quoted from Yelobird:
Sand would not age the chain more strip it to raw clean again. Plus I'm fairly certain its plastic chain which would remove the plating.
Plastic indeed, but no longer chrome as it was in the prototype, now a more appropriate aged look, although I am sure some will want it even more weathered then this. I happened to grab this photo today while I was at the office . . .
We are very much on track to be shipping machines this year.
Here are a few more photos I took today, legs, rails and some heads on the backbox line.