Amazon.com: Blade Runner Toy Pistol by ArtCreativity Toy Gun for Kids with LED and Sound Effects, Design, Batteries Included, Sturdy Plastic Design, Great Gift Idea for Boys and Girls - 2 Pistols :
Amazon.com: Sharper Image Two-Player Toy Laser Tag Gun & Vest Armor Set for Kids, Safe for Children and Adults, Indoor & Outdoor Battle Games, Combine Multiple Sets for Multiplayer Free-for-All! : Toys
Make a Simple Machine Gun Sound Effect Generator Circuit | Homemade Circuit Projects