Step 7: Receive Cake
Congratulations, your Companion Cube is done and ready for assisting you.
The field of application is mind-blowing, but I recommend to use it for recreation purposes like playing genius video games, creating the effect of "Wow, I am just sitting on this object which I carry around right now in this game".
I think no one will raise an objection if you throw away that nasty old desk chair and replace it through this unique piece of fine leather art, letting the Zen in your room directly flow into your brain.
Thanks for reading and happy sitting!
(Here is still a picture to come of me sitting on the cube to show size relations, but my Portal 2-shirt is in the laundry ;))