"Penny Pack" Duck Brand repro

[FinnAmerican]

Has anyone tried one of these 1-inch "Penny Packs"...?
From YouTube videos, they appear to give off an impressive little report .
I have a single Duck Brand pack (repro), can't wait to set them off.
https://youtu.be/EEs0vcoTzTQ

https://www.youtube.com/watch?v=EEs0vcoTzTQ&feature=youtu.be

[gweilo]

I've shot off quite a few. Reliable fuses and nice reports!