It’s been a while since I posted. I’ve been a little busy that I haven’t been able to update the article. Although it was a cold season, I was working on it little by little while keeping warm with the stove in my workshop. Some pipes failed and some worked. The one on the left is a loud whistle for outdoor use, and the two on the right are one-handed whistles with a relatively low sound. The brown head is made of rosewood, the black one is ebony, and the red one is made of padauk.