Not sure if it is a hot gadget or not. It is definitely unique. Hammacher Schlemmer offers a projection clock that throws an analog clock on your wall. The device itself is transparent allowing you to see the inner works of the clock.

The projected clock face can be up to 3 feet in diameter featuring an animated second hand.
The case of the analog projection clock is made from transparent acrylic. The lamp bulb is an 80-watt halogen that generates 700 candlepower to create a crisp image with sharply defined numerals.

Hammacher sells this projection clock for $159.95.

The measurement of the clock are 7" H x 4" W x 7" D.
See more recent Hammacher Schlemmer gadgets.