I had to cut off the weapon arm to make them separate parts in order to prepare the model for mold making/casting.
Test fit; the arm fits snugly enough to stay on without any blue tac or glue.
Here's the rest of the Turtles with their weapon arms ready to go. I probably should of separated the right forearm on the Quarterstaff one as well but I'll see when I make the mold. The Turtle with the Katana should be fine as is.
And finally, removed from the cork base and ready to be placed into clay for the first step of making the 2 part mold for casting.