Safety Whistle

Inspired by the "Storm Whistle" I found by searching for whistles online, I created this thing.

**Print the pea first**
*You must drop the printed pea into the whistle's circular chamber while it's printing.* Wait until the whistle has printed at *least* 10mm high (the base thickness is 2mm, and the pea is 8mm diameter).
I printed the pea using "spiral vase" mode. If you do not have that option with your slicer/printer, print with one shell, 0% infill (no infill). That will give you a nice, light, hollow pea for the whistle chamber.

Believe it or not, it will (and needs to) print without support (the inside of the whistle needs to be hollow with no obstructions). **This will test your printer's bridging capabilities.** The bridging and next two layers may be a bit messy, but you should get a nice top surface.