I'm currently working on a Black Mesa security guard costume for halloween (and other events). I don't think I could pull of Gordon Freeman, and I didn't want to do a generic scientist. There are already enough of those
. Right now, I'm in the process of fiberglassing my pep helmet, and ordering the soft parts. At first I thought I would just modify an existing helmet and add the curved part that goes down the back of the neck out of foam or something, but in the end I decided to make one from scratch. I'll make a new thread and post some pics of where I'm at right now. Needless to say, I'm really excited for Halloween!