I started out with 20 bead whistles. I went through each one for sound quality and ended up chunking six of them. They did make a sound but the sound had too much air in it, and it ended up sounding more like a wheeze than a whistle. I glazed 7 of them and on the way to the kiln dropped them on the way to the kiln. One survived (see previous post). These in the picture are the ones I gingerly and very carefully carried to the kiln and fired yesterday. These are the best of the best!