Take a sureflo paint pole and spring load it.Eaglewood did this awhile back and I made one and covered it with clay and painted it to look like a P2 spear.
Yup I glued wires to the pole and then covered it with air dried clay.I cut sections out so you can see the wires and sculpted some texture into it.Let it dry til it was hard then airbrushed it.I can send you a couple pics if it will help.