Hannibal, MO – One of the most popular events during the 50th annual National Tom Sawyer Days was the Hannibal YMCA's mud volleyball tournament. Co-chairman Kevin Knickerbocker is with the Hannibal Jaycees. The group organizes the event. He says the festival has remained very popular over the years. The 50th annual National Tom Sawyer Days also featured a frog-jumping contest, live music, food tents, wheelbarrow racing, and plenty of souvenirs.