Steam Machine Companion Cube Sleeve

Following on from the previous which was a bunch of panels to stick on the machine (or anything), this is a sleeve you can put your steam machine inside. There's one which has cutouts for where I'm guessing the front ports, button and lights will be, but I honestly think this will severely impact cooling. I could add more cutouts around the sides but not sure the benefit without someone like steve from gamersnexus testing the airflow rigorously.