All you need to do is download the PDF, print it out on card stock, cut it out, tape the ends closed and ipop some LEDs in there for color. As you can see in the image above, the light filtered through the layers throws a festive pattern on the walls. [Sparkle Labs]

The first step was to model his face in 3D Studio Max. After overlaying a wireframe, he added textures in Mudbox 2010 and Photoshop CS3, before using software called Pepakura to break the model up into printable sections. The effect is genuinely impressive, and he's posted a full run-down on the process: [Eric Testroete via Adam Savage and Kotaku]

Basically, you can program certain controls or sounds into the paper radio. Say you're an artist who wants to bring attention to a local college radio station—you program that into the RFID chip, and then when the paper radio is draped on any speaker equipped with an RFID reader, it'll change the station to the one you picked. Or you can have it broadcast short messages; Matt suggests a particular environmentalist star of 30 Rock might program in warnings to turn off your lights when not in use. It's a very particular usage, but the radios themselves look so cool that we don't really care if they're 100% practical. [MocoLoco]

They may be a barely known band (anyone actually heard of them before?) and not really seem to care about grammar, but Meeting of Important People made a music video that's practically a tribute to DIY papercraft. It's quite a leap from just using a cardboard iPhone case. [YouTube via Meeting of Important People]

The sculpture is called, in English, "A Castle on the Sea," and is currently exhibited at Uminohotaru, which we assume is some kind of gallery right on the ocean. The entire project, excluding the lights and possibly a few mechanical elements of the train, is made of painstakingly cut and folded paper. Check out a few of these shots, if you don't mind your socks being rocked clear off your feet and across the room. [Tokyo Bling]

The Princeton PSP-NXT speaker unit series resonates sound throughout the paper and the surface you've placed it on. In this way, each surface you try—from a desk to a glass window—becomes a "speaker box" with unique characteristics.

The kits are USB-powered, and there are three nostalgic designs to choose from: Ghetto Blaster, Hi-Fi, and old-school record player cabinet. You can also create your own designs, if, you know, you're not busy making an origami Millennium Falcon or something. [Princeton via Akihabara News]

The $10 Space Origami Kit features 120 pieces of square paper along with a 32-page instruction manual that will teach you how to build exciting space stuff like rockets, astronauts, lunar modules and super novas—all while disguising your childhood fantasies into an age-old, respectable art form. [The Spoon Sisters via bbGadgets]

Granted, making one of these cards using the basic instructions provided by Thingverse is going to be a bit tricky, so don't go handing these out to just anyone. Make em' count. [Thingverse via Hacked Gadgets]

[iPhone-ticker.de (translated), Thanks, Nicolas!]

The wall material, roughly an inch thick, is made out of pressed newspapers, glue and varnish—which keeps it waterproof. After finishing the walls in 1924, Stenman began using paper to build things around the house. He would roll newspapers up until they were roughly half an inch thick, and then cut them, glue them and nail them to create one-of-a-kind pieces of papercraft.

All furniture in the house is made out of paper, except for the brick fireplace and the insides of the piano. Stenman's grandniece told local reporters she had no idea why her granduncle decided to embark on the project, but quipped that it could have been because paper was cheap—everyone gave him the materials for his house for free. [The Contaminated]

If you want a bigger challenge, you can take the vector-based PDF plans to print in a large format plotter to build your own life-sized, completely useless but absolutely awesome astromech. And if you do, please send me pics. [R2-D2 Plans via Star Wars Blog]

Craft Tip: spray paint the finished version gold and everyone will think you built a C-3PO model. And one day, in a fit of rage, you can tell your best friend that you slept with his girlfriend AND that for all those years he was duped into thinking that model on your coffee table was C-3PO when you'd really constructed a paper version of the similar but white robot and just painted it gold. Bwahahaha. [model via neatorama and blog@papercraft]