I pay tribute to the original design, but I've made some modifications.

https://makerworld.com/zh/models/2458565-fog-horn-stadium-diaphone-super-loud#profileId-2699429

Make the horn part thicker and more durable, so it won't print in a spiral pattern and get damaged within 15 minutes of use.

The valve cover has been modified to have holes, and the "spring" is hollow. This way, you can use slices of rubber gloves or plastic bags as springs, instead of consumables, making it easier to produce a foghorn sound.

If you encounter problems with not being able to make the required noise, it may be due to an improper choice of material for the reed or that you're not blowing hard enough. This model should be user-friendly and ready to use out of the box, so you can assemble the parts and annoy your family.

We tested it with scraps of rubber gloves, plastic shopping bags, self-sealing bags, and packaging bags for consumables. All of these materials worked effectively and produced different tones.

Please be sure to give a thumbs-up and support the original version. If you're bold enough, please do the same for the first redesigned version I've decided to release publicly.

Have fun and let me see how they turn out!