Try dabbing on some undiluted bleach. Rinse off as soon as the stain disappears.
By
06/10/2010
Try to get a hold of some finger print removal grease. Works well to remove all black stains, like if you have a black ink pen stain on your pocket etc. If that ever happens put the shirt pocket between two old towels and dab with fingerprint removal grease. I would be careful about using any chemicals on a dolls face, you may ruin the finish. Do you have a friend who is a cop, as for a bit of the removal grease.
By
06/10/2010
I just used OXY 10 acne remover to remove 4 year old ink from vinyl doll face. Rubbed on with qtip then place in sunny window for a few days. I did it 2 times and all gone. May take longer with marker. Good luck.