Low on cash but still wanting to increase the range of your wireless network?  Here is a howto on building your own waveguide WiFi antenna out of a tin can.

The howto for this "Cantenna" seems simple enough -- so simple that I could even put one of these together myself.  What's even more rad is the fact that it's a fairly inexpensive project.

[via digg]

Previously:
Howto: Dismantle an Atomic Bomb, Howto: Make a Robot Car - Part 1: Overview, Howto: Make A Robot Car - Part 2: H-Bridge Details, 125 Mile WiFi Connection, Google Maps and WiFi used for traffice court evidence