Although binary clocks are somewhat de rigueur these days, the following clock stands out for several reasons. Apart from being fitted into a sensible enclosure that doesn't look out of place in most decors, there is a home-made capacitativetouch-switch under the top of the enclosure - which is made from aluminium foil. See the clock in action below:
You would agree that this is an outstanding clock and application of the Arduino system. For the instructions, code and notes visit the project page here. And we're on twitter, so follow us for news and product updates as well.
To get started with your own Arduino-embedded projects, look no further than the Freetronics LeoStick. Apart from being one of the smallest Arduino-compatibles on the market with USB, it also has an onboard RGB LED and piezo for sound and knock detection: