Why do they call it a marble machine? Those are industrial ball-bearings. On 3/2/2016 1:00 AM, telebob wrote: > https://www.youtube.com/watch?v=IvUU8joBb1Q -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://pairlist1.pair.net/pipermail/austin-ghetto-list/attachments/20160303/d1a2df4a/attachment.html>