There is a demand for locally printed whistles for communities where ICE is or forecast to be.
If you are interested in printing whistles for your area, search “ICE whistles [your area]”. You can use either your state or major nearby city. If you are interested in printing whistles, but can’t find anything, let me know and I can see if I can find a local org you can support.
At the end of the day everyone’s got to do their own risk analysis, but ICE is also pretty reactionary and stupid in their gestapo tactics, and people aren’t regularly shooting ICE with 3d printed guns at this point. The whistles probably (hopefully) irritate them though, and they tend to aggressively lash out at things that irritate them.