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.