Star Senator
This costume is based on a gown worn in the film
Star Wars: Revenge of the Sith.  
This is not a screen accurate version, as my
customer prefered cooler, lighter fabrics, as the
original was made from felted wool.  The underdress is
made of cotton batiste and the tabard/overdress of
medium weight linen.  The collar is heavily interfaced
and adorned with three shank buttons on each side.

A costume comparable to this in fabrics and size,
which is a pattern size 12, is set at $250.  A more
screen accurate version, of felt or brocade, would be
more expensive, due to the higher priced fabrics.