Dazzling Toys Mini Harmonica Necklace Party Favors Pack of 6 Set of 6 Mini Harmonica Necklaces. Produces musical sound. Measures 1  x  inch. Necklace measures 18 inches. Each harmonica necklace comes in a mini bag tied with a tie. Makes a nice party favor or kids gift at a music party or class. Comes in a variety of fine colors. (Colors may vary.) Materials are plastic and metal.