The look of concentration...
Dave won both of his heats.
Strategy planning and making sure the course obstacles are in a straight line.
Here are a few other imaginative entries including the Flintstones, which was a huge hit, but rather slow.
This is always one of the most fun days of the season. Plus, now that everyone has seen that Rat Sass is competitive, there are plans to streamline it even further. Watch out for Dave (and K.!) during next year's race!