I stumble towards a cool website called http://www.instructables.com/
I was interested in creating a free antenna also called a parabolic antenna and found different ways, but wow this site has all different ways of creating almost anything. I even saw Poor man's Wi-Fi USB antenna which is cookware reflector with a hole in the center and you stick the small usb wireless adapter and gain access to other AP's Please no bad intentions,but the site is excellent if anyone would like to venture through this site am sure you will be very amaze with what these folks have come up with enjoy all.