How it COULD look like.
This is the plug for your ultimate silver ballpoint: Ballpoint corpus (Silver)
It plugs using a simple system, but great:
Press the silver plug through one or two layers of tissue packaging film into the corpus' opening. Tear or cut the rest of the film off. Now the plug fits very tight as the film adds pressure.
Designed on June 12th 2011.
0.838 w x
0.838 d x
0.33 w x
0.33 d x