What child dosen't ejoy tooting a whistle? Plan reveals secrets to making whistles. Cute ones too! Kids love to play with them because they fit so nicely in little hands. and they'are easy to make! Patterns for all seven projects pictured are drawn FULL SIZE. Sizes range from 3" to 5". Classic Whistle requires a #3100 Screw Eye. Plane Whistle requires a #AP6 Axle Peg. Car Whistle requires 2 #A35 Axles and 4 #W050 Wheels.