DD, just did some further research, however little, and here's the result. Look at the original video of "old style" at about time 1:54 and you will see all the mugs on the near end, that can be seen through the smoke, are still standing, so they are metal thundermugs, not firecrackers. The other clue is that there are so many different sizes of devices lined up. In my humble opinion anyway, everything shown in this video is a metal thundermug. That's also why the smoke goes pretty much straight up in a cone shape. If it were some kind of firecracker, the smoke would go out in all directions except down.