After hearing a lot about this forum from my husband (Andi), I decided to drop in, too
Thank you very much for all the great information and fotos in this thread (and in many others)!
As a kind of introduction, I'd like to show you what we did in our backyard on sunday: Video "Burning incendiary quoit"
Of course this is a reconstruction, not an original
It was only our first try, so don't expect too much - and naturally we are a little hampered by current legislations (not being allowed to simply use black powder etc.)
The core was made of straw, wrapped in nitrified linnen, coated with a mixture of tar and sulfur and then coated in charcoal.
Hope you enjoy it anyway!