Thanks sek, I got itchy, so in the meantime I've been working on this over the last few days. Started by measuring myself, joint to joint, and bought 1/2" i.d. pipe from Home Depot, along with some 30 and 90 degree elbows, straight couplers, and flanges. Both ends of the pipe are threaded---they've got various sizes, so you can come up with whatever lengths you need. You've just got to remember that every time you join sections together with an elbow or coupler, you're adding an inch, so the pipe you get needs to be an inch shorter. The photos below show the basic assembly that should be used and how to pose it.
Then, I wrapped the armature with sections of 2" high density foam---son of a bitch that stuff's expensive! I paid $40 for a 2' x 6' sheet (x 2) at a fabric store. Anyway, the reason for wrapping is to have the foam take up most of the interior volume of the mannequin once the duct tape top and bottom are placed on the armature. In other words, I used Great Stuff expanding foam to fill the gap between the foam and the outer duct tape shell (about 1" - 2"). I've seen folks try to fill up the duct tape sections COMPLETELY with the foam, all the way to the top in one application. Big mistake, because the **** doesn't cure all at once like that, and you'll have a big, soupy mess on your hands. Like most 2 part materials we use, you need moisture in the air, humidity is especially helpful. But when you're doing this in January, a quartz heater and a hair dryer can help as you cut slits in the shell, inject the foam, THEN I took a detergent bottle of water and sprayed some water inside to provide the moisture the foam needs to expand and sprayed it into the injection slits. I followed this process all the way up each leg, then shot some in from the top. As I went, sometimes, I'd stuff little peices of foam in here and there to help "flesh out" the figure. It took 6 cans to do the legs. I cut specially shaped pieces to be taped to the armature in the torso section, especially my gut area----damn beer! I left the shirt open so I can reach up inside to spray. I'll post a tutorial at some point whwn I get it done.
carlart