“When we were little...back in Stone Age...we had these long strips of red paper with dots of powder embedded in them, and when you hit them with a hammer, they made a real nice bang.
They were in strips because you fed them into toy guns...”
Yep, they were called cap pistols.
Mahalo
Oh my! We were some naughty little freepers, weren't we?
I never did try doing a whole roll at once, for the mega-bang. I stuck to hitting the little spot accurately with a small hammer.
But then, I'm a female. ;)