Supper Habi

This is a whistle that has a lot of effort in it. It took me 4 weeks to figure out how to make one.
Also I searched every videos about how to make a whistle and here it is I got the shape. It took me a lot of tries. The first time I was printing I got a random shape and it was small and it didn't make any sound also the second shape it was a bigger one and it had an up grade with a mouth pice inside the whole. And it also didn't work. So I started to research every thing about whistle but it didn't help. And then i remembered something when I was young. I was walking to a tunnel in a stormy day. Then wind just carried me into the tunnel and I herd this noise of an recorder sound. And i got the idea from the tunnel. The other end of the tunnel was blocked and i decided to make the bottom part block. And to make it easy I made it to a square shape