This picture was for the Photo Challenge "Games." I took an HDR (I take a lot of HDRs, huh?) of the Companion Cube along with the propulsion, repulsion, and conversion gels I bought off of ThinkGeek.com (the conversion gel is behind the repulsion gel, you can't really see it). I also incorporated studio lighting into this shot which worked out pretty well. In case you don't know, all of these things are from the game Portal. :)