Next up is to bend the other part nearly in half and slide the tabs into the slots on the rectangle piece. I stapled the tabs down for good measure.
And finally you have your antenna! Wow that thing is sure butt ugly, but it didn't cost me more that 10 cents to make.
I placed the antenna on the wifi antenna as shown in the picture and then set off to test it.
I used net stumbler to record the results. First with the home made antenna (left) and then without (right).
Low and behold the damn thing works! Now it's not a big gain, but it might be good enough to reach that particular spot in your home you couldn't get any wifi access. Before buying a store bought antenna try this and see if it works for you first, besides it'll only cost you a dime.