Look around you, does someone make you wanna whistle? Do it, let the person you see know that you appreciate the effort he or she has made. If the good old two toned wolf whistle is not what you’d like to hear, my two toned flute might make you shine.
The blue flutes are 3D-printed polyamide and the black flute is 3d-printed stainless steel. They’re all 16 cm high.