In the video, a person is seen using a blue plastic mold to cut a piece of pink and green cake into a watermelon shape. The cake is placed on a white plate, and the person uses the mold to press down on the cake, creating a watermelon slice shape. The person then removes the mold and places it on the plate next to the cake. The cake has black beads on it to represent seeds. The person's hands are visible as they cut the cake and remove the mold.