  Wick holders. 
I wasn't exactly sure what a "wick holder" was, but it was described as something used on large aircraft and made out of titanium: That's good enough for me, and the price was right.  I think they hold some kind of wire that dissipates static electricity on the trailing edge of a wing. 
Source: eBay seller getnick 
Contributor: Theodore Gray 
Acquired: 27 February, 2003 
Text Updated: 16 March, 2009 
Price: $13/10 
Size: 3" 
Purity: >90%
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