update - May 2012
I had gradually become convinced that the strapless bodice should be better, despite all those nice thank-you letters from people telling me it worked for them.
I just don't think that one version should really be for ALL the different shapes. So I customized the pattern again.
Here's the printable file for the new version where you can choose from 1966, 1999, Hobbit and Modelmuse Barbie shapes.
This page explains the difference among the Barbie bodies!
It's just one pattern piece with 1/4 inch hems included! Use a gathered rectangle for the skirt.
Barbie_strapless_printable - pdf format
Cut two pieces, put them right sides together. Stitch 1/4" from the top and sides, clip the corners and turn, then stitch the darts.
(Or, for a smoother interior, stitch the darts on both pieces first, then sew the two pieces together.)
A rectangle for the skirt... leaving a bit on each side to fold over and hem. Then add velcro on the back.
That's as done as this test model is gonna get.
Another test model, with really elegant zigzag hem finishing... turned the wrong way too, in my haste. You know you can do better than that :-)
I was trying to make sure it would fit all three Barbie shapes, the classic 1966, 1999 and 2006,
and it does.
There it is on the 1966.