Loriell's Gown
 
Polyhedron - 1st Ed. AD&D - Polyhedron #19
Third Runner-Up: Loriell's Gown (for the D&D and AD&D games)

This items is a simple blue-and-white peasant dress. It acts as a
Cloak of Protection +2 for any wearer. If the user is a female
humanoid, the dress shrinks or enlarges to a perfect fit. A Detect
Invisibility or similar magical detection can find the seven command
words sewn into the hem in gold thread. Each command
causes the dress to change to a different form, as given below.

Each command word may be used once per day. Each change
produces fresh and immaculate clothing with matching footgear.
The command only has effect when spoken by the wearer of the
gown. If removed, the gown changes to its original form. (The
removal or loss of footgear has no effect; the outfit will always be
complete with each change.) The command words and forms are
as follows.

Li: Original form (blue-and-white peasant dress) and matching shoes.

Ki: Full-length dark green gown of layered silk, with a high
neckline and matching sandals.

Se: Full-length white dress with open gossamer sleeves, oval
neckline, and white sandals.

De: Short black suede tunic with black breeches, soft black
boots, and a long black cape.

Qi: Close-fitting, full-length, red silk dress, with bell sleeves, V-neckline,
and matching sandals.

Ve: Long soft gray dress with open sleeves, "peasant" neckline,
and soft grey suede boots.

Ti: Full-length blue silk dress with square neckline, long square
sleeves, and matching sandals.