A shepherd's whistle is a specialized, modulatable, variable-pitch whistle used to train and transmit commands to working dogs and other animals. Unlike other whistles, they are placed inside the mouth. The pitch is controlled by the placement of the tongue; physically, shepherd's whistles are vessel flutes with the tongue forming one side of the resonating chamber, and controlling its size. Like tin whistles, while simple, they can be used as musical instruments in their own right. (Wikipedia)
Printed on Bambu X1 Carbon
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Shepherds Whistle two holes: Slightly easier to get a sound out of as well as creating a louder tone when used.
Shepherds Whistle two holes lanyard: The Shepherds Whistle two holes model but it has a tab to clip onto a lanyard.
The author marked this model as their own original creation.