How to Make a Low D Tinwhistle in a few Hours
out of a copper pipe or an aluminum shower rod
Introduction to flute acoustics
The physics of air-jet instruments.
Make Your Own Pennywhistle
Instructions for making a copper pennywhistle in the key of D.
Making an Infra-Whistle
How to make a key of D or C telescoping whistle out of brass tubing and a Generation mouthpiece
The Bloody Hand Whistle Plans by Robert McElroy
Instruction for complete beginners on how to build a whistle from a Clark Sweetone C mouthpiece and copper pipe.