I'm having a go at free-machining some cow parsley now because I always liked the dry heads. This grows at the side of the road in Donegal where my son lives. It might be giant hogweed - there are so many variations and they all look similar. Anyway I sprayed it with 'snow' for Christmas and it's been on the hall table ever since.
I'm using water soluble Avalon and some linen string for the stem.
I carried the string on up through two of the stems (not sure what you call those parts) - wish I'd done all of them with the string.
Not that happy with the colour of the variegated thread I used as there was orange in it that I couldn't see on the reel.
They look more like palm trees to me at the moment!