Children's Snoopy Jaw Harp and Slide Whistle Musical Set Trophy 3490 Snoopy Jaw Harp The Snoopy Jaw Harp is played by holding the instrument between the teeth and or lips. You then pluck the metal reed with your finger. This simple instrument gives you an amazing range of tones and pitches just by varying your mouth shape and degree of plucking. Many of us were first exposed to this instrument by the most famous of all Juice Harp Players, Snoopy! Plastic Slide Whistle This Plastic Slide Whistle is a great sounding slide whistle at a great price. It is well built with a metal slide and solid plastic barrel and mouthpiece. Color of slide whistle varies. Perfect Package deal for all jaw harp enthusiast.