Matt Richardson MacGuyvers a Google Reader pedal out of just these items, zero duct tape (video)
The definition of a good friend is someone who, if you say to them "Gee, I'd really like a foot pedal to advance my overflowing Google Reader feeds," turns around and builds you one. From scratch. In this way we know that modder Matt Richardson is a good friend, as that's what he crafted out of a little electric pedal and a disused keyboard (of the Dell variety). It's not the most complex hack we've ever seen, but it is a good one, and he's happy to show you exactly how to do it in the video below. Oh, and the friend's response? You can see it for yourself at the end of the embed.