Say what you want about geeks - but there is one universal truth that binds us all - we love crafts. From puzzles, putting things together to programming, forward-thinking, computer-loving types seem to be drawn to multi-step projects that combine creativity with cleverness.
Foldschool offers a collection of free cardboard furniture cutouts for kids, which you can download, print on any printer and create yourself. It's a craft geek's delight, especially when you have a bunch of cardboard left over from your last tech purchase.
The Foldschool philosophy: Mass culture is run by superficiality and ecological absurdity. The designs are free because the company wants to make "good design available for everyone," but they do accept donations.