I could not find a proper thread to post this in so I started a new one. If the Mods. have a better place for it feel free to put it were it should be.
Here is a little mini-tutorial, on useing my patented Rubber Gasket Technique to attach ball-socket shoulders to non-ball-socket torsos.
Step-1 Assemble Parts
Step-2 Dremel Socket in Torso
I use a cone-shaped grinder bit for this. I also grind a small valley just under the arm-pit so the arms fold down flat against the torso and don't stick straight out from the sides.
Step-3 Making a Rubber Gasket
For this I use the rubber caps from Zoids model kits. I slice the cap in half with my hobby knife. If you drill a hole in the closed half of the cap you can make two gaskets using only one cap.
Step-4 Place the Gasket Over the Plug of the Ball-Socket Joint.
This is were the Zoids cap is the perfect choice for this technique. The rubber is very stretchy and stretches over the plug very easily. The shape of the plug insures that it will not back out of the gasket easily.
Step-5 Plug the Shoulder Into the Torso
This is a very tight fit. I use a small sculpting tool to push the excess rubber of the gasket into the torso. Any small blunt tool should work, just be careful not to use something too sharp or you'll pierce through the rubber gasket.
Here are the end results.
I hope this helps