What is one of thing found in the knothole of the live oak?

In "To Kill a Mockingbird," one of the items found in the knothole of the live oak is a carved soap figurine resembling Scout and Jem. This discovery, along with other items like gum and a spelling bee medal, indicates the mysterious presence of Boo Radley, who leaves these gifts for the children as a way to communicate and connect with them. The knothole serves as a pivotal symbol of innocence and friendship throughout the story.