Fan-art
Simon Butler (drsimonbutler)
Impossible triangle consists of companion cubes from computer game Portal in this artwork, which was designed for printing on T-shirts.
Artist's gallery http://www.othertees.com/artist/drsimonbutler/designs/.
![Impossible Companion](../../../../images/art/misc/fan-art/simon-butler/impossible-companion.jpg)
Impossible Companion
The image was found at http://www.othertees.com/design/9241/.