Portal: Soft, Cuddly Companion Cube
http://kotaku.com/gaming/portal/soft-cuddly-companion-cube-316532.php
"It's not "weighted". Sorry. But it is as heart-warming as the source material"
1192652466416.gif (GIF Image, 1300x1682 pixels) - Scaled (45%)
http://zip.4chan.org/po/src/1192652466416.gif
Today in Joystiq: October 17, 2007 - Joystiq
http://www.joystiq.com/2007/10/17/today-in-joystiq-october-17-2007
"It won't have the weight but it will have the flammability (although we do not recommend Fratricide). You can make your own Weighted Companion Cube papercraft"