diy parts

Happy Holidays! I'm looking for a source for pen parts such as tips, bands, click mechanisms, twist mechanisms etc. I've seen one catalog that offers a few parts but they are for specific pen models. I figure this would allow us to be more creative making custom pens without going kitless. Any...

As a beginning wood turner, and an aspiring pen-maker (haven't yet tried) I am always amazed to see the ingenuity you guys have when it comes to building the tools you need. Budget restraints prevent me from running out and buying some of the essentials, and a young man's fancy turns to notions...