> > > > One big concern I would have, with anything non-standard, and > especially > > home-made, is getting it destroyed by the TSA as they check the aluminu= m > > tubes for explosives. > You could make them from Berylium :-) :-(. R --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .