ok, i was bored and i thought,"why not find more portal papercraft?"after i saw the cake. so, here they are! the cake, turret, GLaDOS, and the cube! unfortunately, printer haz no ink and camera needs batteries. :P. files are all on this page for easy access. oh, and /po/ is the papercraft and origami section of 4chan. so dont ask about it.
Step 1: cube
pretty easy. make the cube, put the pieces on the sides.