Description :

The Weighted Companion Cube (often referred to as the Companion Cube) is a recurring object in the Portal universe. It appears almost identical to the Weighted Storage Cube but with a pink heart replacing the Aperture Science logo.

I made this model a couple of years ago. Feel free to download and use it for personal uses.

Download :

http://www.mediafire.com/download/zbmz22t9r7ciynm/Companion%20Cube.c4d