THE PUNCHER.
My kids grew up thinking that was it's real name. I've always called it the puncher.
I call this:
a BANGER.
Just seems like that should be it's name to me.
And I call this:
a TOOTER.
I lead a women's singing group called "Keynotes" The other day at rehearsal, I had a bit of a problem with my renaming. ( I'll bet you can see where this is going. ) Everyone was chatting and it was time for us to start singing one of our acapella numbers- so time for me to give the pitch. I shouted out, "Quiet! I need to toot!" It got quiet alright!
I think, from now on, I'm calling it a pitchpipe.