The scraper-shaker has a graduated series of notches, an aluminum sound cone, and, of course, a walnut shell full of steel washers. It sounds like this.
It’s kind of surprising how much the little sound cone amplifies the sound.
I carved this bowl out of some waste wood I found on the street. When I roll walnuts around in it, it sounds like this.
But the real reason I carved it is to use for hammering sheet metal into gong or cymbal shapes. Unfortunately, I don’t seem to have any sheet metal.
Yesterday I went to a whistle workshop, so today I thought it was time to make a whistle out of a walnut shell.
On the inside there’s a piece cut from another walnut shell which directs air from the hole at the end up to the fipple.
It sounds like this:
walnutwhistle.mp3