A Salt and Battery

Ok, I know, but it came to me in a flash.  But perhaps on reflection (NO – we’ve done that one to death!!!).
 
Not really an EB so I won’t claim it as one, but I had left it a bit late again and I was looking for something small for ‘Tiny Tuesday’.  I had started with a linchpin, but could not make anything much of it, then a brain wave came from somewhere, and using the flashgun as well.  I did try with a Canon battery, but it was too dark for the setup, and after I had run out of energy - - sorry, we won’t go down that route either . . .
 
Many thanks to Freyjad for hosting Tiny Tuesday.