The good people of ThinkGeek know what we want: Portal stuff, and lots of it. While there might be a limit to how many Aperture Science t-shirts we can get away with wearing in one week, we had no intention of stopping there. H...

Anyone who’s played a Portal game knows that Aperture Science’s charmingly neurotic turrets are full of bullets. And CEO Cave Johnson showed off their design in this teaser video last year. But artist Andrew Gabbott...