As far as Halloween costumes go, I imagine many of us in recent times have wanted to dress up like Isaac Clarke of Dead Space fame, or either member of Daft Punk. A guy by the name of Shawn Thorsson recently got serious about the former option.
He's kindly shared a bunch of photos detailing the process of crafting Isaac's RIG on his blog. As time-consuming as this must have been, the payoff for seeing the project through looks to be worth it. Love the final shot of the presumed friend playing a Necromorph.