Here's a lovely little Instructable that shows how to make a Portal turret out of our favorite plastic building bricks suitable for desk or headboard. Now you're thinking with elements. » 5/19/11 12:40pm 5/19/11 12:40pm

While frantically escaping through this factory inside the Aperture Science testing facility, I stopped to enjoy these robots making sentry turrets then boxing them up for sale. I want one for my own. » 4/19/11 10:20am 4/19/11 10:20am