Coolest use of kazoos I ever saw (heard) was playing in the pit for "How To Succeed In Business, Without Really Trying". There's a scene in the executive washroom, where the guys all sing " Believe In You", as they pretend to wash up, comb their hair etc. Then, when the lead starts to shave with an electric razor, the wind section plays the melody on kazoos! It was brilliant, and very effective! (Fun, too!) Kazoos start at 4:40