I was introduced to Papercraft by a friend and it seemed pretty interesting provided you have some spare time (though it seems it's been around for quite some time). Basically, you download certain model templates, print them out, and then cut and paste them to build your own figures. They range from anime figurines, buildings, mecha, anything. Some of the pics I've seen are really amazing:









Just check out this video of a giant paper Freedom Gundam. Basically, you download this viewer to view the model in 3D including which parts are to go where, and you can also use it to print it out. All in all, it's a cheap way for us to build models instead of importing them. I'll try and do one up once I get some ink for my printer since I downloaded Goku and Cloud, but do post any good models if you give it a shot post pics! Here's a good place to start looking for files.