Make Your Own Pennywhistle - Instructions for making a copper pennywhistle in the key of D. www.geocities.com/SoHo/Lofts/6611/makewhis.htm
Making an Infra-Whistle - How to make a key of D or C telescoping whistle out of brass tubing and a Generation mouthpiece www-bprc.mps.ohio-state.edu/%7Ebdaye/whistle.html
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. www.geocities.com/dwisely/bloodyhand.htm
Whistle Physics - The technical page from Erik Torp-Olsen's whistle site. www.geocities.com/SoHo/Museum/4915/02.HTM
