They are connected with a Friction Pin. The Cone is slotted onto a 6L Bar w/Stop Ring.
That is plugged into two 1x1 Round Plates w/Open Stud. This is a total of six
pieces which is 1 Hit. They are 27 feet tall and 7.5 feet across in 6P scale.
Right now I only have the two main pieces in Yellowish Green.
I happen to like that color but, there are only two other colors
that these pieces share -- Black and Orange. So there isn't a
heck of a lot of variety to be found in this build at the moment.
Yellowish Green is nicely weird though and should fit into a
science fiction themed battlefield pretty well. I hope this
gives people ideas or techniques to use in their terrain builds.