This is a click action pen made with real bullet casings

This shows the stamps on the back of the bullet casing

This is a concept pen where the cap attaches to the body by a spring loaded mechanism in the body. The blue resin is from a bowling ball.

Here the little bayonet style pins can be seen. I may do a tutorial on how it works and was made in the Tips and Tricks pages one day

Made with a few stainless steel bolts

The clip is shaped like a spanner. The original course bolt thread can be seen