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 I wonder what other materials that cue ball, 
(or sphere ) could be made out of?  What about brass, or a type of 
plastic?, stainless would be bullet proof, but more dificult to 
machine.   Also one could use steel with a nichol 
coating. anodised aluminum ? 
  
Brian 
  
  Hi Guys. Here's the link Jon put up for the Mantaray submarine with the 
  grabber arm for those that missed it. It's a youtube video and fun to watch. 
  Note that it's in two parts. Thanks again Jon. 
  Frank D. 
  
 
  
  
   
  It's only a deal if it's where you want to go. Find your travel deal here.  
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