3 U Penn students developed the µWave (microwave, get it?), an Arduino based kitchen hack that plays Youtube videos while you wait for noms. Once you set the cooking time the program goes to Youtube and finds a highly-rated video for the exact length. Read more about it at the project's website.
I was able to build this lamp for under $20 (US) The books cost $6, The Switch and fixture cost $7.50, and a few misc. items that was another $4.
Another successful book lamp from a dedicated user! That particular light bulb looks brilliant, a great addition to the build. If you missed the first one, here's what user Richard C made last week. Well done guys, let's keep them coming!