This is the coolest watch ever.
http://www.tokyoflash.com/viewwatch75W1radio-active-watch.htmlI SO want it.
This one is kind of cool, but too hard to figure out
http://www.thinkgeek.com/gadgets/watches/6a17/Well, I guess not so hard, it just takes a moment to remember which number each light means and then add them together.
The first one is a bit easier, methinks.