You can use a scrollsaw to enhance your pen making skills. There are many people who use it to help in segmenting of their pens. There are those that actually scroll objects and then adhere to the tubes and cast in clear resin. You can see a lot of this at the IAP pen turning site.
Pen making took up quite a bit of my time when I first got into it and I slacked off my scrolling. I am now at the point I can do both and not be overwhelmed with either. There are so many little items you can make on a lathe that sell very well. Bottle stoppers. birdhouse ornaments, as mentioned pens and pencils, bowls, clocks and so forth. Expanding your hobbies is a plus when it comes to selling your wares. Yes turning can be an expensive hobby but it depends on your desire to evolve with it.
Your items do look great and should sell very well. Can be a little extra income while you are having fun.