It depends on whether the ink has set in to the vinyl or not. If it hasn't, then a Mr Clean magic Eraser might remove the marks, but if it has, I think the Oxy10 method is what works. One word of caution though, the Mr Clean Eraser will take paint off your doll, and not just piant scuffs, but the face paint too. Don't use it on the lips cheeks or eyebrows.