I just got my 3D printer delivered, and when I asked in a FB group in Sweden if there were interest in some 3D printed people, I got replies that indicated that some would be very happy to get some. I guess I'm going to make some money to help my hobby Anyway... I'm going to make people for my own layout as well (the primary reason for the 3D printer) and I need to paint them. I don't have an airbrush, and people in N gauge are pretty small anyway, so what would be the best approach? Humbrol matte? Acrylic artist paints? Anything else? I once painted a plastic ship kit in water colours mixed with soap. It stuck... for a while, then started to flake. I was a kid at the time, and didn't dare ask for Humbrol paint from my parents (didn't want to be told no, we can't afford it). The plastic for the 3D printer is PLA. I don't know if water colours would stick to it.