Last year, my work started a pinewood derby for fun and they are doing it again this year. To recap, this is what I did last year.
http://i234.photobucket.com/albums/e...maeda/plan.png
http://i234.photobucket.com/albums/e...a/CIMG3875.jpg
http://i234.photobucket.com/albums/e...a/CIMG3881.jpg
http://i234.photobucket.com/albums/e...CIMG3888_2.png
http://i234.photobucket.com/albums/e...dDerby-196.jpg