Set of 12 Train Engine Car Toy Bubble Bottle Necklaces w/ Integrated Whistle (Colors May Vary) Set of 12 Train Engine Car Toy Bubble Bottle Necklaces w/ Integrated Whistle Bottle Comes Pre-Filled with Bubble Liquid Refill Using Standard Soap and Water Fun Party Favors, Goodie Bag or Stocking Stuffers Perfect Fun for a Variety of Events from Parties, Picnics, Parks, etc