Kiss My Knits!

I have no clue if you’ll know what I’m talking about, but that’s probably par for the course.

There is a kind of whistle. It’s about an inch long, cylindrical, and the one I saw was made of metal. It is open-ended and has a disk inside with holes punched in it. When the user blows through one end, the disk rotates quickly and it makes a Vvvvvvvvvwweeeeee! sound of rising pitch. It’s like what you might hear when a clown slips on a banana peel.

My father had one when I was a kid. It was super-cool. I thought these might make a nice addition to the gifts we’re giving to the nieces and nephews this year. The aunts and uncles may not thank us, but such is life. If they’re not too expensive, I wanted to pick up a few.

The problem is that I have no clue what they’re called. Little help?