If you like this kind of video, I recommend everydaynodaysoff.com, my go-to source for weird, wild and wonderful YouTube gun vids. In this case, someone figured out that anything relatively large and mushy makes a reasonable suppressor.
Those who oppose the Hearing Protection Act may take no notice, but it’s certainly true that you can use a variety of items to hush a firearm’s distinctive crack, including a converted Maglite (seen on the Walking Dead). More proof, if proof be needed, that you can’t stop the signal. Ever.