Okay, you probably won't hang this in the front window, but at least it's transparent, and good looking enough that you could put it in an apartment window without blocking too much of the view or drawing too much attention to it. All you'll need to get started is some paper, aluminum foil, flexible plastic (like a document cover—available at any office supply store), a matching transformer (and the nuts and bolts needed to mount it), and some glue. The end result is a pretty powerful fractal antenna that can rival some of the commercial options we've mentioned before.$3
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This project comes to us from HTPC DIY, and was inspired by the cardboard and aluminum foil antenna we've featured before. This one, however, looks much better. If you want to make one yourself, hit the link below for a walkthrough. It's a relatively quick project, and the reward you get is free over-the-air HD (if you're in range) right to your TV.