I got one of these quite a few years ago from Radio Shack, don't know if they still have them but these guys do:
http://www.treehugger.com/files/2005..._spark_lig.php
Here's mine and it does work oretty good, on a sunny day.
http://i4.photobucket.com/albums/y13...CT0794crop.jpg
http://i4.photobucket.com/albums/y13...CT0795crop.jpg
Another option for fire starting, light and easy to carry.

