remixed Chassepot pen

I **really love** this pen! But it didn't have a pocket clip, so I designed one to snap on. I also modified the main part to have a pair of "stops" to keep the clip from sliding off the pen. Just snap the clip onto the back side of the pen.

21May24 Further modifications! I integrated the pocket clip with the main body. I also added a thicker, tapered, grip. For the integrated clip body, orient it on the build plate just like it is in the file: supports are built in. I recommend a raft.