phildunford made one of these for the first "icarus meet" its here at about 1.40 secs in the video devil maybe he has some photo,s of the build, and it was beautifully built may i say.
Thanks for the kind comment Chris!
Here is a photo that Dean was kind enough to send me of the 'devil' set up at the March Icarus meet.

Not sure if I have any other pics of the finished item, but I certainly have some of the building process. I will put a new page up on the Green Man, hopefully in the next few days...
The commercial items generally had a fountain or roman candle down the middle of the mine as well. This one had 4 3/4" by 9" fountains and the mine was about 4" diamter by about 8" high I think.
The smaller commercial products had the candles or fountains strapped to the mine body. The bigger ones had a baseboard with the component parts given a bit more space.
There is a great picture in Lancaster's book of one made by Brocks, about 5 feet(!) high. Don't know if this was real or just a dummy.