Design modification: Chicago Star Christmas Ornament. I enlarged the hole so that no supports were needed. The current hole also allows mounting on a Christmas tree: https://www.printables.com/pl/model/670047-christmas-tree-stand
If you don't have a multi-color 3D printer, I recommend changing the filament to a different color halfway through the print.
Note that the center of the circle is offset from the center of the whistle by 5.9mm.
The author remixed this model.
I enlarged the hole so that no supports were needed. The current hole also allows mounting on a Christmas tree: https://www.printables.com/pl/model/670047-christmas-tree-stand