I am glad this thread started up, as I bought some dilly stock and am going to start doing this myself, I have not seen any glass dills for sale anywhere and with the limited number of boro workers in Oz, its not like I would have much competition, so it seems like a good way to go.

Unfortunetly my kiln is busted right now so its iportant I fix that so I can anneal properly, and I am going to build a polariscope. I dont know where to buy polarized filters, but while digging through some stuff I found these paper glasses they give you to watch 3-D movies and they are using polaraized pieces of plastic for the lenses, they are only about 2"x2" but I figure I could build a small polariscope with those. I could even make it portable with a flashlight as the light source to show to explain to sex shops what stress and annealing is all about.

But still I do wonder about the legalities, as it is possible for someone to be stupid and to drop their dilly on a concrete floor and chip or crack it and then just keep on using it and then it could crack on them and cut them up. I think I am going to include a little card with each one talking about proper use and care and to inspect them before each use for chips and cracks.