Alarms clocks are annoying. They remind us of what we do not want to do. However, if you want a rather interesting one, try this Do It Yourself alarm clock from Texas Instruments. It couples with the "Chronos" wrist watch for wireless synchronizing of alarm time. Set it on your watch, this DIY alarm clock wakes you up. Functional and inexpensive, approx $46 USD.
You can also use this light as a temperature dependant light. Simply, the colors change depending on the temp.
However, don't like the lights design? Think you can do better? Get the Chronos wireless watch development tool.
Dig