How do you remove paint from an ice-cube tray so that you can use the ice-cube tray for making ice again?
So I have this ice-cube tray, made of white plastic. My little sister used it for a paint palette and she didn't wash it. You can still see the green paint and I'm not sure what type of paint she used. We've tried using detergent and toothpaste. It removed most of the paint, but there's still a bit left. I'm also not sure whether it will be safe to use at all.