We finally had our pinewood derby. Our entry was in the shape of a shark. It had fins, google eyes, and sharp teeth (made from a soda can). It wasn't the fastest, but it did win for "funiest" car. I know for a fact that there were several categories that the judges wanted to give it (most creative, most original), but they were limited to one category per car.
We had a blast. I think the scouts liked it best when one of the cars had a blow out on the track. It actually spun out (if you have ever seen a pinewood derby track you know this is tough to do).