Jawa ion blaster???

hello,
i tried the search, but got no results. It seems the the piece behind the grenade is custom, but i do not have the skills or the machine to construct one. Has anyone here found an alternative solution? Only thing i could think of was copper couplings from home depot, but just seems too thin and weak. I was also wondering on, what type and color of wood varnish has used for the cut ends?
thanks everyone
darthsniks