It seems appropriate to include a Venus Williams commercial on this list, as she is currently on a collision course with her sister in the finals at Wimbledon.  Venus is widely considered one of the most powerful hitters on tour, and once recorded a serve of 129 mph (that mole never stood a chance).  Little known fact: father Richard Williams planned a career of carnival-skills, including Skee-Ball, Win-A-Goldfish and balloon animal-art, if tennis did not pan out.