One day, you'll notice that there is many ink bottles in your shelf with dust...
Today, I'll give you some hints to use them.
Use with Fountain pen
(Maybe) The most common way to use ink. Fill the converter and write a lot.
However, I do not recommend doing this with your most cherished pens. Generally, fountain pens are designed to be used with ink from the same manufacturer.
For example, Montblanc does not provide a manufacturer's warranty for a pen used with another company's ink. While this is a more extreme example, since manufacturers design their pens to perform best with their own ink, there are still risks of corrosion, clogging, or poor ink flow.
Affordable ones are sufficient. I sometimes use the Pilot Explorer (known as Lightive in Japan). If you like, the Kakuno or Preppy are also great for playing around with.
After filling ink, don't forget to use and wash before dried up.
Use with Dip pen
When you're in your room, a dip pen brings you tranquil time.
Quill pens, nib pens, glass pens, calligraphy pens—anything is fine. Once you dip your pen into the bottle, you might find yourself diving deep into thought as well.
I often use Pilot iro-utsushi. It's good because we don't have to worry about drying up.
In addition, we can use shimmer ink that can't be used for fountain pens.
Use with Empty pen
There are kits available to create pens using your own ink. This is one of them.
The process is easy. Open the package,
Put cotton wick into bottle,
assemble it, and wait a few minutes for the ink to saturate the pen tip.
One downside is that the writing from this pen tends to look lighter in color.
Therefore, it's better to use a darker base ink.
Conclusion
Actually, there's another option called a "Rollerball pen", but since I don't own one, I can't comment on it yet.
I'm considering picking up the Kakimori Frost, so when I buy it, I'll write an article about it.
Colorful inks make your life more vibrant.
Have a good life with pens!