Clip pen

thingiverse

I was looking for a pen that could double as a bookmark, small enough to carry in my wallet or breast pocket. It had to be easy and fast to use, and also comfortable enough to jot down brief notes. Here's what I came up with - it's not your typical round pen that screws onto a keychain. If you have any ideas, feel free to share them in the comments and I'll do my best to update the design. Currently, there are two versions: one has a smaller hole for standard Bic refills, while the other is designed for larger pens.