When I hosted Camp Dizzy in 2004 several of the campers wanted some minor customizing
done while they visited us.  Here are a few quick before and after shots of those dolls.

Cayenne - A temporary style change.  I added wire wraps to lift and spread out her ponytail giving it a fuller more bouncy shape.  (Though I have listed this as a temporary style - her guardian loved it and hasn't taken the wire wraps out)

Collette - I loved the two tone coloring of her hair and wanted to show it off a bit more.  I'm not as experimental with other peoples dolls as I am with my own, so I was too chicken to cut her hair, but I think if she had been mine her hair would have ended just past her shoulders and her front wisps would have been shorter than that and cut at an angle

Shelly - Her hair was too short for her ponytail.  When I took it down I trimmed just enough of the bottom to give it a forward sweep.  I colored in some soft pink highlights to just the front.

Violet Blossom - New purple highlights - not too much but just enough to be fun.  I was reluctant to change her style (again because she wasn't my doll) but her guardian has since let her hair down and it is just darling!

Emma (Um-Uh) - Emma was my own doll so she has the most drastic change. She went from a single long ponytail with one loose wisp to a much shorter style.

Violet - She wanted long nails and more naturally posed hands... of course her nails had to match the color of her eyes.