Typewriters

I was interested in making my own ink so I can have any colour I want.
I dissolved some oil paint in machine oil, in my first tries I used universal machine oil but it was too thick, so I tried sewing machine oil that was much thinner. That worked much better but it was still a bit too thick so I was having some trouble "making it run" along the ribbon, so I used lighter fluid as a thinner. It worked great.
I eyeballed everything so I can't give proportions of the ingredients, in a future more serious attempt I plan to take some measurements.

It's been a month and still hasn't dried on the ribbon and types well.

Down sides:
I still haven't found a good method for putting the ink on the ribbon, I put a pair of gloves and use my fingers so it gets a bit messy and it is slow.
The other down side was that didn't take into account that there was old ink on the ribbon that darkened my brown ink so much that looks mostly black.

Oil paint
Thin machine oil
Lighter fluid