digital. sand. timer.
I came across this Digital Sand Timer the other day, which has a cool factor of 8 out of 10. The traditional part of the timer shows a numeric countdown in minutes and seconds, while the hourglass side shows digital grains of sand slowly falling from top to bottom. The neat part is that you can turn the timer upside down and it will reverse the countdown. The numbers reorient too.
The downside is that it's a bit more complex to use than an ordinary timer, and not very intuitive. On the other hand, it also works as an alarm clock or a stop watch, and it lights up. Cost: $9.99-$19.99.
Doing a quick Google search, I found it at Outpost.com for just $9.99.