this post was submitted on 29 Jul 2026
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Before I even get a chance to ask my first question, Heidi DiJulio, Operations Manager at Protoplant, Inc., is off and running. A Vancouver, WA-based producer of filament for 3D printers, the company has become a part of a growing grassroots movement in the United States, whose organizers need what they sell in order to make one of their most effective weapons: 3D-printed whistles.

Across the country, whistling has become an ever-present background noise in communities invaded by ICE, a low-cost, instant-alert system that anyone can participate in. Everyone from crusty gutter punks to activist grandparents have been blowing whistles to alert people to immigration raids; as well as gathering outside hotels and other spaces used by immigration enforcement to ensure they cannot rest, eat, or move without being accompanied by a cacophony. It prevents abductions, saves lives, and makes ICE agents absolutely miserable. And, as noise protests have continued to grow, 3D printing has proven to be one of the most effective and affordable ways to get more whistles into more hands, fast.

“Protoplant is very proud of what we’ve been able to accomplish,” DiJulio says. “We’re very proud to bring it into our workspace, and figure out how to be part of a better future.”

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[–] CaptMurica@beehaw.org 4 points 2 days ago

It is easy to use a bottle cap or acorn to make a very loud whistle, no 3d printer needed.

[–] Midnitte@beehaw.org 7 points 3 days ago

Kinda of surprised how long the article is - but if you need a TLDR:

Get a whistle. You can even 3d print them