Here I closed the mouth of Rosie O'Donnell.
Not an easy task.  That's probably true literally.  Aaaaah!

These dolls were given a breather mouth.
 Removed the teeth only.

80s Jazzie

80s Superstar
teeth removed and dimple made in lower lip

80s Christie

New 90s Superstar

These dolls were dyed.  I don't like the results.
Look OK at first until dry.  At
least with dyed dolls facial painting not required.

These are: Vitamin-C and Creanna (Jakks)

These dolls were painted.  
Creanna - full body painted, Pretty in Plaid, head painted
and put on Pocahontas body Vitamin-C - full body painted
(Click here for instructions)

Here is the painted PIP after full makeover

These all have painted heads put on black bodies

Kira
(click pic to see more)

Vintage Repro Barbie
my first painted lady

Midge

How about a solution for green ear?

Vintage Francie before and after.  Looking at the yellow discoloring, I think someone tried to
fix the green ear.  She still needs a repaint whenever I get time.  I love the color of her hair.
That came from the dye bath.  I used liquid Rit dye and mixed the colors:
dark brown, yellow, tan, black, scarlet

Tip:  Use very little scarlet  and black and as much as you can of the brown, yellow and tan.

Here she is wearing a Family Dollar outfit, which I love.  Amazing what $1 will buy.
<View 1>     <View 2>

I also did a vintage repro Barbie in the same dye bath at the same time.  
For some reason she has a purple tone.  I thought it was the dye bath.  Maybe the different vinyl.