Sesame Workshop - India on Twitter: "Can your child whistle like Elmo? Watch Elmo doing different activities in "Friday Premiere" and your children can learn a lot from Elmo. Every Friday night
The Solo Whistle is a ready to use ultra small servo drive
Amazon - Sesame Street - Elmo is My Friend! - Sing & Play! Song Sound Book and Elmo Plush - PI Kids: Eric Rose Wage, Editors of Phoenix International Publications, Tom Brannon, Tom Brannon: 9781503746541: Books
Gold Whistle - A Miniature, high-power network-based Servo Drive
Intelligent Servo Drive - Whistle by Elmo Motion Control