The crossword solution for the term 'Ball on a Necklace' is BEAD. A BEAD is a small, decorative object that is often strung together with other beads to create jewelry such as necklaces, bracelets, and earrings. Beads can be made from a variety of materials, including glass, wood, metal, plastic, and stone. Beads have been used for centuries to adorn clothing and jewelry, and they are still popular today.