Berlin Bullet

Those of a military disposition will recognize this: a rifle bullet turned into a key ring.
 
I bought it some years ago in a flea market while visiting Berlin. On our return journey there was much consternation in our party as we approached German airport security because I had lost it. 

After much searching it turned up in the lining of my handbag.
 

Many thanks to blipper wrperry who's hosting TT this month.