Build Your Own LED Light Cube Nothing brightens up a tech geek's room like an awesome LED cube, and Hack n' Mod has got a couple of do-it-yourself instructions for building your own glowy box thing. You can get started with a small, less ambitious 3x3x3 cube design , maybe step it up to a 4x4x4 design if you're more confident , and ultimately build your own 8x8x8 cube (like the one after the jump)! Of course, you could always just buy one from LED Cube manufacturers like Seekway , but where's the fun in that? [Hack n' Mod ]