Simply put this ceiling lamp looks like the helmet worn by Doc Brown the first Back to the Future. It is tethered by that “suction cup” that the Doc affixed to Marty McFly’s head.
Besides the main bulb, there would be LED lights throughout this light fixture, making it look like a fancypants chandelier.
Just put some LED rope lights behind some round mirrors and you should get something resembling the portals seen in their namesake game. The Glados cameras would make for neat spotlights.
This desk is based on Superman’s Fortress of Solitude. It features a glass section in the shape of the Superman’s diamond logo. A corner configuration is shown, but a standard desk could also be made with this idea.
Here is a matching couch and chair that looks like the Nintendo DS and Game Boy Advance (the clamshell version). These would be decorated with cartridge pillows. Game screens can be accomplished by putting screenshots on blankets and draping the blankets on top.
This was inspired by DIY Creators’ Floating Desk, I just went with a Floppy Disk look. The disk holes make for really good grommets! This is a generic design, I think it would look cooler if it had a Commodore 64 or Apple II theme.
You could probably build a PC into the back panel if you wanted, or at the very least incorporate a power strip into it, for tidier cable management.