Counting on a webcam, a laser pointer (available for about 20 €), and a program suitable for this purpose can easily construct a low cost 3D scanner.

Python script to scan with Blender:
http://en.myinventions.pl/index.php?page=3Dscanner

BerliOS: free program for 3D scanning with this system:

http://developer.berlios.de/projects/copos/

License: GPL
Development Status: Beta
Platform: Linux
ENVIRONMENT: X11
PRICE: Free

http://diybookscanner.org/

Free hardware project to build a scanner for books, maps and directions online. The software for processing images has also been developed with free license.

http://www3.elphel.com/

Photoelectron Elphel a U.S. company that produces digital cameras and components with open hardware and free software, licensed under the GNU. These are exciting possibilities offered by the customization of hardware open source hardware (like the free software) for assembling hardware parts, such as the 3D-stereo cameras and offers panoramic Elphel.

http://osvideo.constantvzw.org/your-own-private-pirate-tv-station/
http://osvideo.constantvzw.org/wp-content/uploads/ptv_zine_constant_081120.pdf

http://www.photoblog.com/cefolaf/2008/09/05/cosercantar-espaolenglishfranais.html

Coser and sing Manual is a basic (and very DCU) circuit bending technique that uses Ladousse Olaf (among others) to build electronic instruments that plays with the group LCDD , on the basis of resistance to change circuit a potentiometer for a toy. They call these instruments Doorags in honor of Arizona band Doo Rag, who draw inspiration for these instruments.

http://www.drawdio.com

Drawdio is a fun invention which uses the conductive properties of graphite from a pencil to emit sounds through a small synthesizer, making the act of drawing in musical composition or vice versa.

http://www.liquidware.com/shop/show/GMP/GamePack

http://antipastohw.blogspot.com/2008/10/using-inputshield-to-make-open-source.html

Parts to build a console emulating the Game Boy Pocket but open source, based on Arduino.

http://es.wikipedia.org/wiki/GP2X

Console-oriented software.

http://www.ladyada.net/make/fuzebox/index.html

8-bit console open source.

http://www.arduino.cc/ Arduino is an open source hardware based on a motherboard I / O and a single development environment that implements the language Processing / Wiring. Arduino can be used to develop stand-alone interactive objects or can be connected to software on your computer (eg. Macromedia Flash, Processing, Max / MSP, Pure Data). The plates can be mounted by hand or purchased, the sofware can be downloaded for free. The hardware reference designs are available under an open source license, is free to adapt them to suit your needs. pot notar l'ambient per la recepció des d'una varietat de sensors, i pot afectar els seus voltants controlant llums, motors, i uns altres accionadors. Goes to artists, designers, and anyone interested in creating interactive objects or environments. Arduino can feel the atmosphere for receiving from a variety of sensors and can affect its surroundings by controlling lights, motors, and other actuators. (basat en Processing). The microcontroller on the board is programmed using the Arduino programming language (based on Wiring) and the Arduino development environment (based Processing). The Arduino project received an Honorable Mention in the Digital Communities category at the Prix Ars Electronica 2006.