It's pretty simple:
I molded a shape with Super Sculpy
Ovened it to harden
Sanded it.
Drilled 3 connecting holes/channels for the wires to go
through the body
Widened them out a bit with a Dremel for the button, plug and screw on atomizer connector
Spray painted it Flat Black
Wired, soldered, stuck hardware in holes.
Thats about it.