In a message dated 2/23/00 12:13:53 AM !!!First Boot!!!, tesla-at-pupman-dot-com writes: << Original Poster: "peterB" <zardoz-at-albany-dot-net> I found a source of pre tapped and threaded brass spheres of around 1/4" to 4" and larger (the larger sizes being hollow.) Thanks for all the responses. I can get the source if anyone is interested. -Pete >> Yes I'm interested. Thanks, Leslie