MEGA-ISP Arduino Shield
Prepared schematics and board layout of this Arduino shield during one-hour-long phone call. Spent another hour to create "physical interpretation".
Purpose of this PCB is providing ISP header to turn Arduino in full-functional programmer for AVR microcontrollers.
Firmware to turn your Arduino board into ISP programmer can be found here: code.google.com/p/mega-isp/
Connected device could be seen here: www.flickr.com/photos/drug123/3718360064/
All components on PCB were scavenged from old dead LAN cards.
I have released schematics for improved version of this board under CC BY-NC-SA license, you may find it here: drug123.org.ua/mega-isp-shield/